331013330321 has 4 divisors (see below), whose sum is σ = 345405214272. Its totient is φ = 316621446372.

The previous prime is 331013330317. The next prime is 331013330327. The reversal of 331013330321 is 123033310133.

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 331013330321 - 2² = 331013330317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 14391883927 = 331013330321 / (3 + 3 + 1 + 0 + 1 + 3 + 3 + 3 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331013330327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7195941941 + ... + 7195941986.

It is an arithmetic number, because the mean of its divisors is an integer number (86351303568).

Almost surely, 2^331013330321 is an apocalyptic number.

It is an amenable number.

331013330321 is a deficient number, since it is larger than the sum of its proper divisors (14391883951).

331013330321 is a wasteful number, since it uses less digits than its factorization.

331013330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14391883950.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 331013330321 its reverse (123033310133), we get a palindrome (454046640454).

The spelling of 331013330321 in words is "three hundred thirty-one billion, thirteen million, three hundred thirty thousand, three hundred twenty-one".