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10123133031220 = 2251182955505719
BaseRepresentation
bin1001001101001111100110…
…1111111001001100110100
31022211202120112202100012011
42103103321233321030310
52311324134023444340
633310300401134004
72063241450006436
oct223237157711464
938752515670164
1010123133031220
113253218760940
121175b2092a304
135857b8464501
1426dd685ca656
151284d4eb90ea
hex934f9bf9334

10123133031220 has 48 divisors (see below), whose sum is σ = 23219152790400. Its totient is φ = 3676698760320.

The previous prime is 10123133031211. The next prime is 10123133031259. The reversal of 10123133031220 is 2213033132101.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 10123133031191 and 10123133031200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27570480 + ... + 27935239.

It is an arithmetic number, because the mean of its divisors is an integer number (483732349800).

Almost surely, 210123133031220 is an apocalyptic number.

10123133031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123133031220 is an abundant number, since it is smaller than the sum of its proper divisors (13096019759180).

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

10123133031220 is a wasteful number, since it uses less digits than its factorization.

10123133031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55506568 (or 55506566 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 10123133031220 its reverse (2213033132101), we get a palindrome (12336166163321).

The spelling of 10123133031220 in words is "ten trillion, one hundred twenty-three billion, one hundred thirty-three million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 829 1658 3316 4145 8290 9119 16580 18238 36476 45595 91190 182380 55505719 111011438 222022876 277528595 555057190 610562909 1110114380 1221125818 2442251636 3052814545 6105629090 12211258180 46014241051 92028482102 184056964204 230071205255 460142410510 506156651561 920284821020 1012313303122 2024626606244 2530783257805 5061566515610 10123133031220