311349707 has 4 divisors (see below), whose sum is σ = 311392536. Its totient is φ = 311306880.

The previous prime is 311349631. The next prime is 311349721. The reversal of 311349707 is 707943113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311349707 - 2¹² = 311345611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311349767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7493 + ... + 26054.

It is an arithmetic number, because the mean of its divisors is an integer number (77848134).

Almost surely, 2^311349707 is an apocalyptic number.

311349707 is a deficient number, since it is larger than the sum of its proper divisors (42829).

311349707 is an equidigital number, since it uses as much as digits as its factorization.

311349707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42828.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 311349707 is about 17645.1043351973. The cubic root of 311349707 is about 677.7707469415.

The spelling of 311349707 in words is "three hundred eleven million, three hundred forty-nine thousand, seven hundred seven".