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20013230010120 = 2335663012515451
BaseRepresentation
bin1001000110011101100010…
…11101110010111100001000
32121212020122102001122200120
410203032301131302330020
510110344043340310440
6110321541223103240
74133623332163644
oct443166135627410
977766572048616
1020013230010120
1164166216624a6
1222b28462a1b20
13b223162194a9
144d290737bc24
1524a8cb5bddd0
hex1233b1772f08

20013230010120 has 64 divisors (see below), whose sum is σ = 60040619461440. Its totient is φ = 5336778720000.

The previous prime is 20013230010077. The next prime is 20013230010127. The reversal of 20013230010120 is 2101003231002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20013230010120.

It is not an unprimeable number, because it can be changed into a prime (20013230010127) 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, 6698395 + ... + 9213845.

It is an arithmetic number, because the mean of its divisors is an integer number (938134679085).

Almost surely, 220013230010120 is an apocalyptic number.

20013230010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013230010120 is an abundant number, since it is smaller than the sum of its proper divisors (40027389451320).

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

20013230010120 is a wasteful number, since it uses less digits than its factorization.

20013230010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581766 (or 2581762 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20013230010120 its reverse (2101003231002), we get a palindrome (22114233241122).

The spelling of 20013230010120 in words is "twenty trillion, thirteen billion, two hundred thirty million, ten thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 66301 132602 198903 265204 331505 397806 530408 663010 795612 994515 1326020 1591224 1989030 2515451 2652040 3978060 5030902 7546353 7956120 10061804 12577255 15092706 20123608 25154510 30185412 37731765 50309020 60370824 75463530 100618040 150927060 301854120 166776916751 333553833502 500330750253 667107667004 833884583755 1000661500506 1334215334008 1667769167510 2001323001012 2501653751265 3335538335020 4002646002024 5003307502530 6671076670040 10006615005060 20013230010120