31032313101212 has 6 divisors (see below), whose sum is σ = 54306547927128. Its totient is φ = 15516156550604.

The previous prime is 31032313101211. The next prime is 31032313101287. The reversal of 31032313101212 is 21210131323013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032313101211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3879039137648 + ... + 3879039137655.

It is an arithmetic number, because the mean of its divisors is an integer number (9051091321188).

Almost surely, 2^{31032313101212} is an apocalyptic number.

It is an amenable number.

31032313101212 is a deficient number, since it is larger than the sum of its proper divisors (23274234825916).

31032313101212 is a wasteful number, since it uses less digits than its factorization.

31032313101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758078275307 (or 7758078275305 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31032313101212 its reverse (21210131323013), we get a palindrome (52242444424225).

The spelling of 31032313101212 in words is "thirty-one trillion, thirty-two billion, three hundred thirteen million, one hundred one thousand, two hundred twelve".