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112012103131 = 17191087319031
BaseRepresentation
bin110100001010001110…
…0010000110111011011
3101201010022112101222021
41220110130100313123
53313400044300011
6123242504035311
711043523111225
oct1502434206733
9351108471867
10112012103131
114355aa03a65
1219860762b37
13a741321186
1455c850d415
152da8a9b471
hex1a14710ddb

112012103131 has 16 divisors (see below), whose sum is σ = 124958453760. Its totient is φ = 99782375040.

The previous prime is 112012103123. The next prime is 112012103153. The reversal of 112012103131 is 131301210211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 112012103131 - 23 = 112012103123 is a prime.

It is a super-2 number, since 2×1120121031312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112012103431) 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, 191586 + ... + 510616.

It is an arithmetic number, because the mean of its divisors is an integer number (7809903360).

Almost surely, 2112012103131 is an apocalyptic number.

112012103131 is a deficient number, since it is larger than the sum of its proper divisors (12946350629).

112012103131 is a wasteful number, since it uses less digits than its factorization.

112012103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320154.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 112012103131 its reverse (131301210211), we get a palindrome (243313313342).

The spelling of 112012103131 in words is "one hundred twelve billion, twelve million, one hundred three thousand, one hundred thirty-one".

Divisors: 1 17 19 323 1087 18479 20653 319031 351101 5423527 6061589 103047013 346786697 5895373849 6588947243 112012103131