312230223133 has 4 divisors (see below), whose sum is σ = 312249788928. Its totient is φ = 312210657340.

The previous prime is 312230223091. The next prime is 312230223157. The reversal of 312230223133 is 331322032213.

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 312230223133 - 2³⁷ = 174791269661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312230223098 and 312230223107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312230323133) 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, 9758941 + ... + 9790882.

It is an arithmetic number, because the mean of its divisors is an integer number (78062447232).

Almost surely, 2^312230223133 is an apocalyptic number.

It is an amenable number.

312230223133 is a deficient number, since it is larger than the sum of its proper divisors (19565795).

312230223133 is a wasteful number, since it uses less digits than its factorization.

312230223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565794.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 312230223133 its reverse (331322032213), we get a palindrome (643552255346).

The spelling of 312230223133 in words is "three hundred twelve billion, two hundred thirty million, two hundred twenty-three thousand, one hundred thirty-three".