31214120312 has 16 divisors (see below), whose sum is σ = 58713465840. Its totient is φ = 15557196096.

The previous prime is 31214120309. The next prime is 31214120339. The reversal of 31214120312 is 21302141213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6230348 + ... + 6235355.

It is an arithmetic number, because the mean of its divisors is an integer number (3669591615).

Almost surely, 2^31214120312 is an apocalyptic number.

It is an amenable number.

31214120312 is a deficient number, since it is larger than the sum of its proper divisors (27499345528).

31214120312 is a wasteful number, since it uses less digits than its factorization.

31214120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12466022 (or 12466018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31214120312 its reverse (21302141213), we get a palindrome (52516261525).

The spelling of 31214120312 in words is "thirty-one billion, two hundred fourteen million, one hundred twenty thousand, three hundred twelve".