311323104 has 36 divisors (see below), whose sum is σ = 885325896. Its totient is φ = 103774272.

The previous prime is 311323093. The next prime is 311323109. The reversal of 311323104 is 401323113.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311323109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540204 + ... + 540779.

It is an arithmetic number, because the mean of its divisors is an integer number (24592386).

Almost surely, 2^311323104 is an apocalyptic number.

It is an amenable number.

311323104 is an abundant number, since it is smaller than the sum of its proper divisors (574002792).

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

311323104 is a wasteful number, since it uses less digits than its factorization.

311323104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080999 (or 1080988 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 311323104 is about 17644.3504839368. The cubic root of 311323104 is about 677.7514425513.

Adding to 311323104 its reverse (401323113), we get a palindrome (712646217).

Subtracting 311323104 from its reverse (401323113), we obtain a palindrome (90000009).

The spelling of 311323104 in words is "three hundred eleven million, three hundred twenty-three thousand, one hundred four".