31148230312 has 16 divisors (see below), whose sum is σ = 58862799360. Its totient is φ = 15451483824.

The previous prime is 31148230277. The next prime is 31148230319. The reversal of 31148230312 is 21303284113.

It is not an unprimeable number, because it can be changed into a prime (31148230319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15327838 + ... + 15329869.

It is an arithmetic number, because the mean of its divisors is an integer number (3678924960).

Almost surely, 2^31148230312 is an apocalyptic number.

It is an amenable number.

31148230312 is a deficient number, since it is larger than the sum of its proper divisors (27714569048).

31148230312 is a wasteful number, since it uses less digits than its factorization.

31148230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30657840 (or 30657836 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 31148230312 in words is "thirty-one billion, one hundred forty-eight million, two hundred thirty thousand, three hundred twelve".