311431042423420 has 48 divisors (see below), whose sum is σ = 690802180282368. Its totient is φ = 117750371618880.

The previous prime is 311431042423399. The next prime is 311431042423453. The reversal of 311431042423420 is 24324240134113.

It is a super-3 number, since 3×311431042423420³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5840765584 + ... + 5840818903.

It is an arithmetic number, because the mean of its divisors is an integer number (14391712089216).

Almost surely, 2^{311431042423420} is an apocalyptic number.

It is an amenable number.

311431042423420 is an abundant number, since it is smaller than the sum of its proper divisors (379371137858948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311431042423420 is a wasteful number, since it uses less digits than its factorization.

311431042423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11681584570 (or 11681584568 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 311431042423420 its reverse (24324240134113), we get a palindrome (335755282557533).

The spelling of 311431042423420 in words is "three hundred eleven trillion, four hundred thirty-one billion, forty-two million, four hundred twenty-three thousand, four hundred twenty".