312122322331 has 6 divisors (see below), whose sum is σ = 329414418132. Its totient is φ = 295694831340.

The previous prime is 312122322311. The next prime is 312122322349. The reversal of 312122322331 is 133223221213.

It is not a de Polignac number, because 312122322331 - 2¹¹ = 312122320283 is a prime.

It is a super-2 number, since 2×312122322331² (a number of 24 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 = 312122322296 and 312122322305.

It is not an unprimeable number, because it can be changed into a prime (312122322311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432302025 + ... + 432302746.

It is an arithmetic number, because the mean of its divisors is an integer number (54902403022).

Almost surely, 2^312122322331 is an apocalyptic number.

312122322331 is a deficient number, since it is larger than the sum of its proper divisors (17292095801).

312122322331 is an equidigital number, since it uses as much as digits as its factorization.

312122322331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864604809 (or 864604790 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 312122322331 its reverse (133223221213), we get a palindrome (445345543544).

The spelling of 312122322331 in words is "three hundred twelve billion, one hundred twenty-two million, three hundred twenty-two thousand, three hundred thirty-one".