321013113131 has 4 divisors (see below), whose sum is σ = 321014741112. Its totient is φ = 321011485152.

The previous prime is 321013113121. The next prime is 321013113137. The reversal of 321013113131 is 131311310123.

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 321013113131 - 2⁶ = 321013113067 is a prime.

It is a super-2 number, since 2×321013113131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321013113137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469661 + ... + 928766.

It is an arithmetic number, because the mean of its divisors is an integer number (80253685278).

Almost surely, 2^321013113131 is an apocalyptic number.

321013113131 is a deficient number, since it is larger than the sum of its proper divisors (1627981).

321013113131 is a wasteful number, since it uses less digits than its factorization.

321013113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627980.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 321013113131 its reverse (131311310123), we get a palindrome (452324423254).

The spelling of 321013113131 in words is "three hundred twenty-one billion, thirteen million, one hundred thirteen thousand, one hundred thirty-one".