311313404 has 36 divisors (see below), whose sum is σ = 582472800. Its totient is φ = 145544256.

The previous prime is 311313403. The next prime is 311313407. The reversal of 311313404 is 404313113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311313403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112712 + ... + 115440.

It is an arithmetic number, because the mean of its divisors is an integer number (16179800).

Almost surely, 2^311313404 is an apocalyptic number.

It is an amenable number.

311313404 is a deficient number, since it is larger than the sum of its proper divisors (271159396).

311313404 is a wasteful number, since it uses less digits than its factorization.

311313404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 311313404 is about 17644.0756062765. The cubic root of 311313404 is about 677.7444035006.

Adding to 311313404 its reverse (404313113), we get a palindrome (715626517).

The spelling of 311313404 in words is "three hundred eleven million, three hundred thirteen thousand, four hundred four".