311331042404 has 24 divisors (see below), whose sum is σ = 556456172160. Its totient is φ = 152343978336.

The previous prime is 311331042377. The next prime is 311331042439. The reversal of 311331042404 is 404240133113.

It is a happy number.

It is a super-2 number, since 2×311331042404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684194 + ... + 3767750.

It is an arithmetic number, because the mean of its divisors is an integer number (23185673840).

Almost surely, 2^311331042404 is an apocalyptic number.

It is an amenable number.

311331042404 is a deficient number, since it is larger than the sum of its proper divisors (245125129756).

311331042404 is a wasteful number, since it uses less digits than its factorization.

311331042404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103427 (or 103425 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 311331042404 its reverse (404240133113), we get a palindrome (715571175517).

The spelling of 311331042404 in words is "three hundred eleven billion, three hundred thirty-one million, forty-two thousand, four hundred four".