31320330320032 has 24 divisors (see below), whose sum is σ = 66405123419796. Its totient is φ = 14455537070592.

The previous prime is 31320330320029. The next prime is 31320330320047. The reversal of 31320330320032 is 23002303302313.

It can be written as a sum of positive squares in 2 ways, for example, as 22996666794256 + 8323663525776 = 4795484^2 + 2885076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31320330319979 and 31320330320006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37644627373 + ... + 37644628204.

Almost surely, 2^{31320330320032} is an apocalyptic number.

31320330320032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31320330320032 is an abundant number, since it is smaller than the sum of its proper divisors (35084793099764).

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

31320330320032 is a wasteful number, since it uses less digits than its factorization.

31320330320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75289255600 (or 75289255592 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 31320330320032 its reverse (23002303302313), we get a palindrome (54322633622345).

The spelling of 31320330320032 in words is "thirty-one trillion, three hundred twenty billion, three hundred thirty million, three hundred twenty thousand, thirty-two".