312133231223 has 8 divisors (see below), whose sum is σ = 341299028736. Its totient is φ = 283099108600.

The previous prime is 312133231187. The next prime is 312133231229. The reversal of 312133231223 is 322132331213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312133231223 - 2⁸ = 312133230967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312133231192 and 312133231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133231229) 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 7 ways as a sum of consecutive naturals, for example, 32913761 + ... + 32923242.

It is an arithmetic number, because the mean of its divisors is an integer number (42662378592).

Almost surely, 2^312133231223 is an apocalyptic number.

312133231223 is a deficient number, since it is larger than the sum of its proper divisors (29165797513).

312133231223 is a wasteful number, since it uses less digits than its factorization.

312133231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65837445.

The product of its digits is 3888, while the sum is 26.

Adding to 312133231223 its reverse (322132331213), we get a palindrome (634265562436).

The spelling of 312133231223 in words is "three hundred twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred twenty-three".