31112310123 has 12 divisors (see below), whose sum is σ = 44970003000. Its totient is φ = 20727694176.

The previous prime is 31112310109. The next prime is 31112310157. The reversal of 31112310123 is 32101321113.

31112310123 is a `hidden beast` number, since 311 + 1 + 231 + 0 + 123 = 666.

It is not a de Polignac number, because 31112310123 - 2⁹ = 31112309611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31112310096 and 31112310105.

It is not an unprimeable number, because it can be changed into a prime (31112310223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1139586 + ... + 1166567.

It is an arithmetic number, because the mean of its divisors is an integer number (3747500250).

Almost surely, 2^31112310123 is an apocalyptic number.

31112310123 is a deficient number, since it is larger than the sum of its proper divisors (13857692877).

31112310123 is a wasteful number, since it uses less digits than its factorization.

31112310123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307658 (or 2307655 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31112310123 its reverse (32101321113), we get a palindrome (63213631236).

The spelling of 31112310123 in words is "thirty-one billion, one hundred twelve million, three hundred ten thousand, one hundred twenty-three".