311320113 has 8 divisors (see below), whose sum is σ = 447023808. Its totient is φ = 191581584.

The previous prime is 311320103. The next prime is 311320159. The reversal of 311320113 is 311023113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311320113 - 2⁵ = 311320081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311320092 and 311320101.

It is not an unprimeable number, because it can be changed into a prime (311320103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3991245 + ... + 3991322.

It is an arithmetic number, because the mean of its divisors is an integer number (55877976).

Almost surely, 2^311320113 is an apocalyptic number.

It is an amenable number.

311320113 is a deficient number, since it is larger than the sum of its proper divisors (135703695).

311320113 is a wasteful number, since it uses less digits than its factorization.

311320113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7982583.

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

The square root of 311320113 is about 17644.2657257252. The cubic root of 311320113 is about 677.7492720720.

Adding to 311320113 its reverse (311023113), we get a palindrome (622343226).

The spelling of 311320113 in words is "three hundred eleven million, three hundred twenty thousand, one hundred thirteen".