312023113 has 4 divisors (see below), whose sum is σ = 317138308. Its totient is φ = 306907920.

The previous prime is 312023071. The next prime is 312023119. The reversal of 312023113 is 311320213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72795024 + 239228089 = 8532^2 + 15467^2 .

It is a cyclic number.

It is not a de Polignac number, because 312023113 - 2¹⁷ = 311892041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312023119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2557506 + ... + 2557627.

It is an arithmetic number, because the mean of its divisors is an integer number (79284577).

Almost surely, 2^312023113 is an apocalyptic number.

It is an amenable number.

312023113 is a deficient number, since it is larger than the sum of its proper divisors (5115195).

312023113 is an equidigital number, since it uses as much as digits as its factorization.

312023113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115194.

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

The square root of 312023113 is about 17664.1759785165. The cubic root of 312023113 is about 678.2590362812.

Adding to 312023113 its reverse (311320213), we get a palindrome (623343326).

The spelling of 312023113 in words is "three hundred twelve million, twenty-three thousand, one hundred thirteen".