312133230313 has 4 divisors (see below), whose sum is σ = 312135635968. Its totient is φ = 312130824660.

The previous prime is 312133230229. The next prime is 312133230337. The reversal of 312133230313 is 313032331213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313032331213 = 7 ⋅44718904459.

It is a cyclic number.

It is not a de Polignac number, because 312133230313 - 2⁹ = 312133229801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312133930313) 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, 996393 + ... + 1271638.

It is an arithmetic number, because the mean of its divisors is an integer number (78033908992).

Almost surely, 2^312133230313 is an apocalyptic number.

It is an amenable number.

312133230313 is a deficient number, since it is larger than the sum of its proper divisors (2405655).

312133230313 is a wasteful number, since it uses less digits than its factorization.

312133230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405654.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 312133230313 its reverse (313032331213), we get a palindrome (625165561526).

The spelling of 312133230313 in words is "three hundred twelve billion, one hundred thirty-three million, two hundred thirty thousand, three hundred thirteen".