321313012022131 has 4 divisors (see below), whose sum is σ = 321313522730200. Its totient is φ = 321312501314064.

The previous prime is 321313012022099. The next prime is 321313012022141. The reversal of 321313012022131 is 131220210313123.

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 321313012022131 - 2⁵ = 321313012022099 is a prime.

It is a super-2 number, since 2×321313012022131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321313012022096 and 321313012022105.

It is not an unprimeable number, because it can be changed into a prime (321313012022141) 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, 254409141 + ... + 255668998.

It is an arithmetic number, because the mean of its divisors is an integer number (80328380682550).

Almost surely, 2^{321313012022131} is an apocalyptic number.

321313012022131 is a deficient number, since it is larger than the sum of its proper divisors (510708069).

321313012022131 is an equidigital number, since it uses as much as digits as its factorization.

321313012022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510708068.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 321313012022131 its reverse (131220210313123), we get a palindrome (452533222335254).

The spelling of 321313012022131 in words is "three hundred twenty-one trillion, three hundred thirteen billion, twelve million, twenty-two thousand, one hundred thirty-one".