31004030112 has 96 divisors (see below), whose sum is σ = 88818799104. Its totient is φ = 9391507200.

The previous prime is 31004030069. The next prime is 31004030149. The reversal of 31004030112 is 21103040013.

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

It is a super-2 number, since 2×31004030112² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31004030091 and 31004030100.

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, 4126263 + ... + 4133769.

It is an arithmetic number, because the mean of its divisors is an integer number (925195824).

Almost surely, 2^31004030112 is an apocalyptic number.

31004030112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31004030112 is an abundant number, since it is smaller than the sum of its proper divisors (57814768992).

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

31004030112 is a wasteful number, since it uses less digits than its factorization.

31004030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11442 (or 11434 counting only the distinct ones).

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

Adding to 31004030112 its reverse (21103040013), we get a palindrome (52107070125).

Subtracting from 31004030112 its reverse (21103040013), we obtain a palindrome (9900990099).

The spelling of 31004030112 in words is "thirty-one billion, four million, thirty thousand, one hundred twelve".