31210130312 has 16 divisors (see below), whose sum is σ = 59879901840. Its totient is φ = 15242156496.

The previous prime is 31210130297. The next prime is 31210130377. The reversal of 31210130312 is 21303101213.

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, 45363218 + ... + 45363905.

It is an arithmetic number, because the mean of its divisors is an integer number (3742493865).

Almost surely, 2^31210130312 is an apocalyptic number.

It is an amenable number.

31210130312 is a deficient number, since it is larger than the sum of its proper divisors (28669771528).

31210130312 is a wasteful number, since it uses less digits than its factorization.

31210130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90727172 (or 90727168 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31210130312 its reverse (21303101213), we get a palindrome (52513231525).

The spelling of 31210130312 in words is "thirty-one billion, two hundred ten million, one hundred thirty thousand, three hundred twelve".