31030130112 has 56 divisors (see below), whose sum is σ = 82867902336. Its totient is φ = 10246702848.

The previous prime is 31030130057. The next prime is 31030130161. The reversal of 31030130112 is 21103103013.

It is a junction number, because it is equal to n+sod(n) for n = 31030130091 and 31030130100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734668 + ... + 775755.

Almost surely, 2^31030130112 is an apocalyptic number.

31030130112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31030130112 is an abundant number, since it is smaller than the sum of its proper divisors (51837772224).

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

31030130112 is a wasteful number, since it uses less digits than its factorization.

31030130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510545 (or 1510535 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31030130112 its reverse (21103103013), we get a palindrome (52133233125).

The spelling of 31030130112 in words is "thirty-one billion, thirty million, one hundred thirty thousand, one hundred twelve".