311312104 has 8 divisors (see below), whose sum is σ = 583710210. Its totient is φ = 155656048.

The previous prime is 311312101. The next prime is 311312171. The reversal of 311312104 is 401213113.

It can be written as a sum of positive squares in only one way, i.e., 157502500 + 153809604 = 12550^2 + 12402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (311312101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19456999 + ... + 19457014.

Almost surely, 2^311312104 is an apocalyptic number.

It is an amenable number.

311312104 is a deficient number, since it is larger than the sum of its proper divisors (272398106).

311312104 is a wasteful number, since it uses less digits than its factorization.

311312104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38914019 (or 38914015 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 311312104 is about 17644.0387666770. The cubic root of 311312104 is about 677.7434601116.

Adding to 311312104 its reverse (401213113), we get a palindrome (712525217).

The spelling of 311312104 in words is "three hundred eleven million, three hundred twelve thousand, one hundred four".