312311299 has 4 divisors (see below), whose sum is σ = 312364080. Its totient is φ = 312258520.

The previous prime is 312311281. The next prime is 312311323. The reversal of 312311299 is 992113213.

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 312311299 - 2⁷ = 312311171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312311299.

It is not an unprimeable number, because it can be changed into a prime (312311239) 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, 16204 + ... + 29785.

It is an arithmetic number, because the mean of its divisors is an integer number (78091020).

Almost surely, 2^312311299 is an apocalyptic number.

312311299 is a deficient number, since it is larger than the sum of its proper divisors (52781).

312311299 is an equidigital number, since it uses as much as digits as its factorization.

312311299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52780.

The product of its digits is 2916, while the sum is 31.

The square root of 312311299 is about 17672.3314534331. The cubic root of 312311299 is about 678.4677864282.

The spelling of 312311299 in words is "three hundred twelve million, three hundred eleven thousand, two hundred ninety-nine".