31012331312 has 10 divisors (see below), whose sum is σ = 60086391948. Its totient is φ = 15506165648.

The previous prime is 31012331303. The next prime is 31012331327. The reversal of 31012331312 is 21313321013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969135338 + ... + 969135369.

Almost surely, 2^31012331312 is an apocalyptic number.

It is an amenable number.

31012331312 is a deficient number, since it is larger than the sum of its proper divisors (29074060636).

31012331312 is a wasteful number, since it uses less digits than its factorization.

31012331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938270715 (or 1938270709 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31012331312 its reverse (21313321013), we get a palindrome (52325652325).

The spelling of 31012331312 in words is "thirty-one billion, twelve million, three hundred thirty-one thousand, three hundred twelve".