31020000010012 has 24 divisors (see below), whose sum is σ = 58463714691872. Its totient is φ = 14316201748800.

The previous prime is 31020000010001. The next prime is 31020000010061. The reversal of 31020000010012 is 21001000002013.

It is a super-2 number, since 2×31020000010012² (a number of 28 digits) contains 22 as substring.

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, 13985064 + ... + 16050607.

Almost surely, 2^{31020000010012} is an apocalyptic number.

It is an amenable number.

31020000010012 is a deficient number, since it is larger than the sum of its proper divisors (27443714681860).

31020000010012 is a wasteful number, since it uses less digits than its factorization.

31020000010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30055549 (or 30055547 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 31020000010012 its reverse (21001000002013), we get a palindrome (52021000012025).

The spelling of 31020000010012 in words is "thirty-one trillion, twenty billion, ten thousand, twelve".