31303030031312 has 40 divisors (see below), whose sum is σ = 65347650816000. Its totient is φ = 14440324740480.

The previous prime is 31303030031311. The next prime is 31303030031443. The reversal of 31303030031312 is 21313003030313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31303030031311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37226864 + ... + 38058447.

It is an arithmetic number, because the mean of its divisors is an integer number (1633691270400).

Almost surely, 2^{31303030031312} is an apocalyptic number.

It is an amenable number.

31303030031312 is an abundant number, since it is smaller than the sum of its proper divisors (34044620784688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31303030031312 is a wasteful number, since it uses less digits than its factorization.

31303030031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75287331 (or 75287325 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31303030031312 its reverse (21313003030313), we get a palindrome (52616033061625).

The spelling of 31303030031312 in words is "thirty-one trillion, three hundred three billion, thirty million, thirty-one thousand, three hundred twelve".