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12312113313120 = 253556945079501
BaseRepresentation
bin1011001100101010001100…
…1000111111010101100000
31121121000201100100012021020
42303022203020333111200
53103210202002004440
642104035021325440
72410343434262505
oct263124310772540
947530640305236
1012312113313120
113a175a0a97585
12146a205a06880
136b4047ca839a
14307ca37d74ac
151653edc843d0
hexb32a323f560

12312113313120 has 96 divisors (see below), whose sum is σ = 38851318003680. Its totient is φ = 3277459968000.

The previous prime is 12312113313089. The next prime is 12312113313121. The reversal of 12312113313120 is 2131331121321.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312113313121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22266631 + ... + 22812870.

It is an arithmetic number, because the mean of its divisors is an integer number (404701229205).

Almost surely, 212312113313120 is an apocalyptic number.

12312113313120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312113313120 is an abundant number, since it is smaller than the sum of its proper divisors (26539204690560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12312113313120 is a wasteful number, since it uses less digits than its factorization.

12312113313120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45080088 (or 45080080 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 12312113313120 its reverse (2131331121321), we get a palindrome (14443444434441).

The spelling of 12312113313120 in words is "twelve trillion, three hundred twelve billion, one hundred thirteen million, three hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 569 1138 1707 2276 2845 3414 4552 5690 6828 8535 9104 11380 13656 17070 18208 22760 27312 34140 45520 54624 68280 91040 136560 273120 45079501 90159002 135238503 180318004 225397505 270477006 360636008 450795010 540954012 676192515 721272016 901590020 1081908024 1352385030 1442544032 1803180040 2163816048 2704770060 3606360080 4327632096 5409540120 7212720160 10819080240 21638160480 25650236069 51300472138 76950708207 102600944276 128251180345 153901416414 205201888552 256502360690 307802832828 384753541035 410403777104 513004721380 615605665656 769507082070 820807554208 1026009442760 1231211331312 1539014164140 2052018885520 2462422662624 3078028328280 4104037771040 6156056656560 12312113313120