312320311 has 8 divisors (see below), whose sum is σ = 337728960. Its totient is φ = 287693568.

The previous prime is 312320269. The next prime is 312320321. The reversal of 312320311 is 113023213.

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 312320311 - 2²¹ = 310223159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312320321) 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, 194646 + ... + 196243.

It is an arithmetic number, because the mean of its divisors is an integer number (42216120).

Almost surely, 2^312320311 is an apocalyptic number.

312320311 is a deficient number, since it is larger than the sum of its proper divisors (25408649).

312320311 is a wasteful number, since it uses less digits than its factorization.

312320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390953.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 312320311 is about 17672.5864264402. The cubic root of 312320311 is about 678.4743122812.

Adding to 312320311 its reverse (113023213), we get a palindrome (425343524).

The spelling of 312320311 in words is "three hundred twelve million, three hundred twenty thousand, three hundred eleven".