321131303011 has 4 divisors (see below), whose sum is σ = 321133109224. Its totient is φ = 321129496800.

The previous prime is 321131302939. The next prime is 321131303039. The reversal of 321131303011 is 110303131123.

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 321131303011 - 2²⁵ = 321097748579 is a prime.

It is a super-2 number, since 2×321131303011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321131303011.

It is not an unprimeable number, because it can be changed into a prime (321131303071) 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, 603225 + ... + 1003066.

It is an arithmetic number, because the mean of its divisors is an integer number (80283277306).

Almost surely, 2^321131303011 is an apocalyptic number.

321131303011 is a deficient number, since it is larger than the sum of its proper divisors (1806213).

321131303011 is a wasteful number, since it uses less digits than its factorization.

321131303011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806212.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 321131303011 its reverse (110303131123), we get a palindrome (431434434134).

The spelling of 321131303011 in words is "three hundred twenty-one billion, one hundred thirty-one million, three hundred three thousand, eleven".