311430131331404 has 12 divisors (see below), whose sum is σ = 547264151947128. Its totient is φ = 155068945060800.

The previous prime is 311430131331349. The next prime is 311430131331437. The reversal of 311430131331404 is 404133131034113.

It is a super-2 number, since 2×311430131331404² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161530150142 + ... + 161530152069.

It is an arithmetic number, because the mean of its divisors is an integer number (45605345995594).

Almost surely, 2^{311430131331404} is an apocalyptic number.

It is an amenable number.

311430131331404 is a deficient number, since it is larger than the sum of its proper divisors (235834020615724).

311430131331404 is a wasteful number, since it uses less digits than its factorization.

311430131331404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323060302456 (or 323060302454 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 311430131331404 its reverse (404133131034113), we get a palindrome (715563262365517).

The spelling of 311430131331404 in words is "three hundred eleven trillion, four hundred thirty billion, one hundred thirty-one million, three hundred thirty-one thousand, four hundred four".