321013331311 has 4 divisors (see below), whose sum is σ = 321015299752. Its totient is φ = 321011362872.

The previous prime is 321013331299. The next prime is 321013331413. The reversal of 321013331311 is 113133310123.

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

It is a cyclic number.

It is not a de Polignac number, because 321013331311 - 2¹⁷ = 321013200239 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 (321013431311) 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, 715065 + ... + 1073938.

It is an arithmetic number, because the mean of its divisors is an integer number (80253824938).

Almost surely, 2^321013331311 is an apocalyptic number.

321013331311 is a deficient number, since it is larger than the sum of its proper divisors (1968441).

321013331311 is a wasteful number, since it uses less digits than its factorization.

321013331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968440.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 321013331311 its reverse (113133310123), we get a palindrome (434146641434).

The spelling of 321013331311 in words is "three hundred twenty-one billion, thirteen million, three hundred thirty-one thousand, three hundred eleven".