31102352312 has 32 divisors (see below), whose sum is σ = 61924338000. Its totient is φ = 14594440704.

The previous prime is 31102352273. The next prime is 31102352339. The reversal of 31102352312 is 21325320113.

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, 280178 + ... + 375105.

Almost surely, 2^31102352312 is an apocalyptic number.

It is an amenable number.

31102352312 is a deficient number, since it is larger than the sum of its proper divisors (30821985688).

31102352312 is a wasteful number, since it uses less digits than its factorization.

31102352312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655655 (or 655651 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 31102352312 its reverse (21325320113), we get a palindrome (52427672425).

The spelling of 31102352312 in words is "thirty-one billion, one hundred two million, three hundred fifty-two thousand, three hundred twelve".