331597452013 has 4 divisors (see below), whose sum is σ = 343031846940. Its totient is φ = 320163057088.

The previous prime is 331597451981. The next prime is 331597452049. The reversal of 331597452013 is 310254795133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151093131849 + 180504320164 = 388707^2 + 424858^2 .

It is a cyclic number.

It is not a de Polignac number, because 331597452013 - 2⁵ = 331597451981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331597452073) 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 3 ways as a sum of consecutive naturals, for example, 5717197420 + ... + 5717197477.

It is an arithmetic number, because the mean of its divisors is an integer number (85757961735).

Almost surely, 2^331597452013 is an apocalyptic number.

It is an amenable number.

331597452013 is a deficient number, since it is larger than the sum of its proper divisors (11434394927).

331597452013 is a wasteful number, since it uses less digits than its factorization.

331597452013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434394926.

The product of its (nonzero) digits is 340200, while the sum is 43.

The spelling of 331597452013 in words is "three hundred thirty-one billion, five hundred ninety-seven million, four hundred fifty-two thousand, thirteen".