311413025 has 24 divisors (see below), whose sum is σ = 481439424. Its totient is φ = 194126400.

The previous prime is 311413007. The next prime is 311413057. The reversal of 311413025 is 520314113.

It is not a de Polignac number, because 311413025 - 2⁸ = 311412769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311412988 and 311413006.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 78962 + ... + 82811.

It is an arithmetic number, because the mean of its divisors is an integer number (20059976).

Almost surely, 2^311413025 is an apocalyptic number.

311413025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

311413025 is a deficient number, since it is larger than the sum of its proper divisors (170026399).

311413025 is a wasteful number, since it uses less digits than its factorization.

311413025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161801 (or 161796 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 311413025 is about 17646.8984527027. The cubic root of 311413025 is about 677.8166890428.

Adding to 311413025 its reverse (520314113), we get a palindrome (831727138).

The spelling of 311413025 in words is "three hundred eleven million, four hundred thirteen thousand, twenty-five".