321312023131 has 8 divisors (see below), whose sum is σ = 371141160624. Its totient is φ = 274919377920.

The previous prime is 321312023111. The next prime is 321312023161. The reversal of 321312023131 is 131320213123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321312023131 - 2²⁵ = 321278468699 is a prime.

It is a super-3 number, since 3×321312023131³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321312023111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859122870 + ... + 859123243.

It is an arithmetic number, because the mean of its divisors is an integer number (46392645078).

Almost surely, 2^321312023131 is an apocalyptic number.

321312023131 is a deficient number, since it is larger than the sum of its proper divisors (49829137493).

321312023131 is a wasteful number, since it uses less digits than its factorization.

321312023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718246141.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 321312023131 its reverse (131320213123), we get a palindrome (452632236254).

The spelling of 321312023131 in words is "three hundred twenty-one billion, three hundred twelve million, twenty-three thousand, one hundred thirty-one".