311316051 has 8 divisors (see below), whose sum is σ = 415353744. Its totient is φ = 207411200.

The previous prime is 311316029. The next prime is 311316067. The reversal of 311316051 is 150613113.

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

It is a cyclic number.

It is not a de Polignac number, because 311316051 - 2²⁵ = 277761619 is a prime.

It is a super-2 number, since 2×311316051² = 193835367220469202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311316091) 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, 27606 + ... + 37211.

It is an arithmetic number, because the mean of its divisors is an integer number (51919218).

Almost surely, 2^311316051 is an apocalyptic number.

311316051 is a deficient number, since it is larger than the sum of its proper divisors (104037693).

311316051 is a wasteful number, since it uses less digits than its factorization.

311316051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66421.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 311316051 is about 17644.1506171309. The cubic root of 311316051 is about 677.7463243777.

Adding to 311316051 its reverse (150613113), we get a palindrome (461929164).

The spelling of 311316051 in words is "three hundred eleven million, three hundred sixteen thousand, fifty-one".