331102221013 has 4 divisors (see below), whose sum is σ = 333484251520. Its totient is φ = 328720190508.

The previous prime is 331102220963. The next prime is 331102221071. The reversal of 331102221013 is 310122201133.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310122201133 = 163 ⋅1902590191.

It is a cyclic number.

It is not a de Polignac number, because 331102221013 - 2²⁵ = 331068666581 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 (331102221613) 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, 1191015045 + ... + 1191015322.

It is an arithmetic number, because the mean of its divisors is an integer number (83371062880).

Almost surely, 2^331102221013 is an apocalyptic number.

It is an amenable number.

331102221013 is a deficient number, since it is larger than the sum of its proper divisors (2382030507).

331102221013 is a wasteful number, since it uses less digits than its factorization.

331102221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382030506.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 331102221013 its reverse (310122201133), we get a palindrome (641224422146).

The spelling of 331102221013 in words is "three hundred thirty-one billion, one hundred two million, two hundred twenty-one thousand, thirteen".