311320007 has 2 divisors, whose sum is σ = 311320008. Its totient is φ = 311320006.

The previous prime is 311320003. The next prime is 311320013. The reversal of 311320007 is 700023113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311320007 - 2² = 311320003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311320003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155660003 + 155660004.

It is an arithmetic number, because the mean of its divisors is an integer number (155660004).

Almost surely, 2^311320007 is an apocalyptic number.

311320007 is a deficient number, since it is larger than the sum of its proper divisors (1).

311320007 is an equidigital number, since it uses as much as digits as its factorization.

311320007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 311320007 is about 17644.2627219162. The cubic root of 311320007 is about 677.7491951507.

The spelling of 311320007 in words is "three hundred eleven million, three hundred twenty thousand, seven".