311310323121 has 16 divisors (see below), whose sum is σ = 475616231424. Its totient is φ = 177427139664.

The previous prime is 311310323089. The next prime is 311310323147. The reversal of 311310323121 is 121323013113.

It is a happy number.

It is not a de Polignac number, because 311310323121 - 2⁵ = 311310323089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (311310323161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19344831 + ... + 19360916.

It is an arithmetic number, because the mean of its divisors is an integer number (29726014464).

Almost surely, 2^311310323121 is an apocalyptic number.

It is an amenable number.

311310323121 is a deficient number, since it is larger than the sum of its proper divisors (164305908303).

311310323121 is a wasteful number, since it uses less digits than its factorization.

311310323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38706140.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311310323121 its reverse (121323013113), we get a palindrome (432633336234).

The spelling of 311310323121 in words is "three hundred eleven billion, three hundred ten million, three hundred twenty-three thousand, one hundred twenty-one".