311302113 has 16 divisors (see below), whose sum is σ = 446938560. Its totient is φ = 192014336.

The previous prime is 311302111. The next prime is 311302129. The reversal of 311302113 is 311203113.

It is a cyclic number.

It is not a de Polignac number, because 311302113 - 2¹ = 311302111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311302092 and 311302101.

It is not an unprimeable number, because it can be changed into a prime (311302111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48720 + ... + 54737.

It is an arithmetic number, because the mean of its divisors is an integer number (27933660).

Almost surely, 2^311302113 is an apocalyptic number.

It is an amenable number.

311302113 is a deficient number, since it is larger than the sum of its proper divisors (135636447).

311302113 is a wasteful number, since it uses less digits than its factorization.

311302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103536.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 311302113 is about 17643.7556376187. The cubic root of 311302113 is about 677.7362097164.

Adding to 311302113 its reverse (311203113), we get a palindrome (622505226).

The spelling of 311302113 in words is "three hundred eleven million, three hundred two thousand, one hundred thirteen".