31303321042 has 16 divisors (see below), whose sum is σ = 56819473920. Its totient is φ = 12626549568.

The previous prime is 31303321033. The next prime is 31303321067. The reversal of 31303321042 is 24012330313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65763042 + ... + 65763517.

It is an arithmetic number, because the mean of its divisors is an integer number (3551217120).

Almost surely, 2^31303321042 is an apocalyptic number.

31303321042 is a deficient number, since it is larger than the sum of its proper divisors (25516152878).

31303321042 is a wasteful number, since it uses less digits than its factorization.

31303321042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131526585.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31303321042 its reverse (24012330313), we get a palindrome (55315651355).

The spelling of 31303321042 in words is "thirty-one billion, three hundred three million, three hundred twenty-one thousand, forty-two".