31347386212 has 12 divisors (see below), whose sum is σ = 55676701360. Its totient is φ = 15439757256.

The previous prime is 31347386173. The next prime is 31347386219. The reversal of 31347386212 is 21268374313.

It is not an unprimeable number, because it can be changed into a prime (31347386219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58483662 + ... + 58484197.

Almost surely, 2^31347386212 is an apocalyptic number.

It is an amenable number.

31347386212 is a deficient number, since it is larger than the sum of its proper divisors (24329315148).

31347386212 is a wasteful number, since it uses less digits than its factorization.

31347386212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116967930 (or 116967928 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The spelling of 31347386212 in words is "thirty-one billion, three hundred forty-seven million, three hundred eighty-six thousand, two hundred twelve".