31002030112 has 48 divisors (see below), whose sum is σ = 61910707320. Its totient is φ = 15278948352.

The previous prime is 31002030107. The next prime is 31002030139. The reversal of 31002030112 is 21103020013.

It can be written as a sum of positive squares in 4 ways, for example, as 30191147536 + 810882576 = 173756^2 + 28476^2 .

It is a super-2 number, since 2×31002030112² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31002030092 and 31002030101.

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, 4876728 + ... + 4883080.

Almost surely, 2^31002030112 is an apocalyptic number.

31002030112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31002030112 is a deficient number, since it is larger than the sum of its proper divisors (30908677208).

31002030112 is a wasteful number, since it uses less digits than its factorization.

31002030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8525 (or 8517 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31002030112 its reverse (21103020013), we get a palindrome (52105050125).

The spelling of 31002030112 in words is "thirty-one billion, two million, thirty thousand, one hundred twelve".