311204404323 has 28 divisors (see below), whose sum is σ = 466692174168. Its totient is φ = 207425577600.

The previous prime is 311204404319. The next prime is 311204404331. The reversal of 311204404323 is 323404402113.

311204404323 is a `hidden beast` number, since 31 + 1 + 204 + 404 + 3 + 23 = 666.

It is not a de Polignac number, because 311204404323 - 2² = 311204404319 is a prime.

It is a super-2 number, since 2×311204404323² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (311204404333) 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 27 ways as a sum of consecutive naturals, for example, 3592723 + ... + 3678323.

Almost surely, 2^311204404323 is an apocalyptic number.

311204404323 is a deficient number, since it is larger than the sum of its proper divisors (155487769845).

311204404323 is an frugal number, since it uses more digits than its factorization.

311204404323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90606 (or 90591 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 311204404323 its reverse (323404402113), we get a palindrome (634608806436).

The spelling of 311204404323 in words is "three hundred eleven billion, two hundred four million, four hundred four thousand, three hundred twenty-three".