312023303320213 has 4 divisors (see below), whose sum is σ = 312080210731008. Its totient is φ = 311966395909420.

The previous prime is 312023303320207. The next prime is 312023303320229.

312023303320213 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312023303320213 - 2⁹ = 312023303319701 is a prime.

It is a super-2 number, since 2×312023303320213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312023303320273) 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, 28453697173 + ... + 28453708138.

It is an arithmetic number, because the mean of its divisors is an integer number (78020052682752).

Almost surely, 2^{312023303320213} is an apocalyptic number.

It is an amenable number.

312023303320213 is a deficient number, since it is larger than the sum of its proper divisors (56907410795).

312023303320213 is an equidigital number, since it uses as much as digits as its factorization.

312023303320213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56907410794.

The product of its (nonzero) digits is 11664, while the sum is 28.

It can be divided in two parts, 31202330 and 3320213, that added together give a palindrome (34522543).

The spelling of 312023303320213 in words is "three hundred twelve trillion, twenty-three billion, three hundred three million, three hundred twenty thousand, two hundred thirteen".