311051412321 has 16 divisors (see below), whose sum is σ = 451656334080. Its totient is φ = 189265507200.

The previous prime is 311051412311. The next prime is 311051412377. The reversal of 311051412321 is 123214150113.

It is not a de Polignac number, because 311051412321 - 2⁵ = 311051412289 is a prime.

It is a super-2 number, since 2×311051412321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311051412291 and 311051412300.

It is not an unprimeable number, because it can be changed into a prime (311051412311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44803705 + ... + 44810646.

It is an arithmetic number, because the mean of its divisors is an integer number (28228520880).

Almost surely, 2^311051412321 is an apocalyptic number.

It is an amenable number.

311051412321 is a deficient number, since it is larger than the sum of its proper divisors (140604921759).

311051412321 is a wasteful number, since it uses less digits than its factorization.

311051412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89614456.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 311051412321 its reverse (123214150113), we get a palindrome (434265562434).

The spelling of 311051412321 in words is "three hundred eleven billion, fifty-one million, four hundred twelve thousand, three hundred twenty-one".