311020064 has 12 divisors (see below), whose sum is σ = 612320814. Its totient is φ = 155510016.

The previous prime is 311020057. The next prime is 311020081. The reversal of 311020064 is 460020113.

It can be written as a sum of positive squares in only one way, i.e., 259467664 + 51552400 = 16108^2 + 7180^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4859657 + ... + 4859720.

Almost surely, 2^311020064 is an apocalyptic number.

It is an amenable number.

311020064 is a deficient number, since it is larger than the sum of its proper divisors (301300750).

311020064 is an equidigital number, since it uses as much as digits as its factorization.

311020064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719387 (or 9719379 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 311020064 is about 17635.7609419044. The cubic root of 311020064 is about 677.5314647950.

Adding to 311020064 its reverse (460020113), we get a palindrome (771040177).

The spelling of 311020064 in words is "three hundred eleven million, twenty thousand, sixty-four".