31321332303132 has 24 divisors (see below), whose sum is σ = 73085492374272. Its totient is φ = 10440103577200.

The previous prime is 31321332303101. The next prime is 31321332303139. The reversal of 31321332303132 is 23130323312313.

It is a self number, because there is not a number n which added to its sum of digits gives 31321332303132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321332303139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42182094 + ... + 42918197.

It is an arithmetic number, because the mean of its divisors is an integer number (3045228848928).

Almost surely, 2^{31321332303132} is an apocalyptic number.

It is an amenable number.

31321332303132 is an abundant number, since it is smaller than the sum of its proper divisors (41764160071140).

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

31321332303132 is a wasteful number, since it uses less digits than its factorization.

31321332303132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85130969 (or 85130967 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 30.

Adding to 31321332303132 its reverse (23130323312313), we get a palindrome (54451655615445).

The spelling of 31321332303132 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred thirty-two million, three hundred three thousand, one hundred thirty-two".