31003412312 has 32 divisors (see below), whose sum is σ = 61568488800. Its totient is φ = 14585670144.

The previous prime is 31003412269. The next prime is 31003412369. The reversal of 31003412312 is 21321430013.

It is a super-2 number, since 2×31003412312² (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 in 7 ways as a sum of consecutive naturals, for example, 473693 + ... + 535155.

It is an arithmetic number, because the mean of its divisors is an integer number (1924015275).

Almost surely, 2^31003412312 is an apocalyptic number.

It is an amenable number.

31003412312 is a deficient number, since it is larger than the sum of its proper divisors (30565076488).

31003412312 is a wasteful number, since it uses less digits than its factorization.

31003412312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65195 (or 65191 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31003412312 its reverse (21321430013), we get a palindrome (52324842325).

The spelling of 31003412312 in words is "thirty-one billion, three million, four hundred twelve thousand, three hundred twelve".