331030122013 has 4 divisors (see below), whose sum is σ = 331330241088. Its totient is φ = 330730002940.

The previous prime is 331030121999. The next prime is 331030122041. The reversal of 331030122013 is 310221030133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331030122013 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 (331030122053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150057883 + ... + 150060088.

It is an arithmetic number, because the mean of its divisors is an integer number (82832560272).

Almost surely, 2^331030122013 is an apocalyptic number.

It is an amenable number.

331030122013 is a deficient number, since it is larger than the sum of its proper divisors (300119075).

331030122013 is a wasteful number, since it uses less digits than its factorization.

331030122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300119074.

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

Adding to 331030122013 its reverse (310221030133), we get a palindrome (641251152146).

The spelling of 331030122013 in words is "three hundred thirty-one billion, thirty million, one hundred twenty-two thousand, thirteen".