3131213606312 has 32 divisors (see below), whose sum is σ = 6404828591520. Its totient is φ = 1423262581440.

The previous prime is 3131213606293. The next prime is 3131213606393. The reversal of 3131213606312 is 2136063121313.

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, 10956338 + ... + 11238494.

It is an arithmetic number, because the mean of its divisors is an integer number (200150893485).

Almost surely, 2^{3131213606312} is an apocalyptic number.

It is an amenable number.

3131213606312 is an abundant number, since it is smaller than the sum of its proper divisors (3273614985208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131213606312 is a wasteful number, since it uses less digits than its factorization.

3131213606312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408281 (or 408277 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

Adding to 3131213606312 its reverse (2136063121313), we get a palindrome (5267276727625).

The spelling of 3131213606312 in words is "three trillion, one hundred thirty-one billion, two hundred thirteen million, six hundred six thousand, three hundred twelve".