31013244512 has 12 divisors (see below), whose sum is σ = 61057325196. Its totient is φ = 15506622240.

The previous prime is 31013244481. The next prime is 31013244523. The reversal of 31013244512 is 21544231013.

It is a happy number.

It is a super-2 number, since 2×31013244512² (a number of 22 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 as a sum of consecutive naturals, namely, 484581914 + ... + 484581977.

It is an arithmetic number, because the mean of its divisors is an integer number (5088110433).

Almost surely, 2^31013244512 is an apocalyptic number.

31013244512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31013244512 is a deficient number, since it is larger than the sum of its proper divisors (30044080684).

31013244512 is an equidigital number, since it uses as much as digits as its factorization.

31013244512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969163901 (or 969163893 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31013244512 its reverse (21544231013), we get a palindrome (52557475525).

The spelling of 31013244512 in words is "thirty-one billion, thirteen million, two hundred forty-four thousand, five hundred twelve".