320033131012 has 18 divisors (see below), whose sum is σ = 651496017102. Its totient is φ = 137157056064.

The previous prime is 320033131009. The next prime is 320033131051. The reversal of 320033131012 is 210131330023.

It can be written as a sum of positive squares in only one way, i.e., 268091986176 + 51941144836 = 517776^2 + 227906^2 .

It is a super-2 number, since 2×320033131012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 816410853 + ... + 816411244.

Almost surely, 2^320033131012 is an apocalyptic number.

It is an amenable number.

320033131012 is an abundant number, since it is smaller than the sum of its proper divisors (331462886090).

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

320033131012 is a wasteful number, since it uses less digits than its factorization.

320033131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632822115 (or 1632822106 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 320033131012 its reverse (210131330023), we get a palindrome (530164461035).

The spelling of 320033131012 in words is "three hundred twenty billion, thirty-three million, one hundred thirty-one thousand, twelve".