331304123013 has 4 divisors (see below), whose sum is σ = 441738830688. Its totient is φ = 220869415340.

The previous prime is 331304122997. The next prime is 331304123081. The reversal of 331304123013 is 310321403133.

It is a happy number.

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 not a de Polignac number, because 331304123013 - 2⁴ = 331304122997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331304123713) 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, 55217353833 + ... + 55217353838.

It is an arithmetic number, because the mean of its divisors is an integer number (110434707672).

Almost surely, 2^331304123013 is an apocalyptic number.

It is an amenable number.

331304123013 is a deficient number, since it is larger than the sum of its proper divisors (110434707675).

331304123013 is a wasteful number, since it uses less digits than its factorization.

331304123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110434707674.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 331304123013 its reverse (310321403133), we get a palindrome (641625526146).

The spelling of 331304123013 in words is "three hundred thirty-one billion, three hundred four million, one hundred twenty-three thousand, thirteen".