312133224279 has 4 divisors (see below), whose sum is σ = 416177632376. Its totient is φ = 208088816184.

The previous prime is 312133224233. The next prime is 312133224281. The reversal of 312133224279 is 972422331213.

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

It is a de Polignac number, because none of the positive numbers 2^k-312133224279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133222279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52022204044 + ... + 52022204049.

It is an arithmetic number, because the mean of its divisors is an integer number (104044408094).

Almost surely, 2^312133224279 is an apocalyptic number.

312133224279 is a deficient number, since it is larger than the sum of its proper divisors (104044408097).

312133224279 is a wasteful number, since it uses less digits than its factorization.

312133224279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104044408096.

The product of its digits is 108864, while the sum is 39.

The spelling of 312133224279 in words is "three hundred twelve billion, one hundred thirty-three million, two hundred twenty-four thousand, two hundred seventy-nine".