312333020423221 has 16 divisors (see below), whose sum is σ = 362807393681920. Its totient is φ = 263322579214080.

The previous prime is 312333020423191. The next prime is 312333020423257. The reversal of 312333020423221 is 122324020333213.

It is a cyclic number.

It is not a de Polignac number, because 312333020423221 - 2⁵ = 312333020423189 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 (312333020423521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38782525 + ... + 46138381.

It is an arithmetic number, because the mean of its divisors is an integer number (22675462105120).

Almost surely, 2^{312333020423221} is an apocalyptic number.

It is an amenable number.

312333020423221 is a deficient number, since it is larger than the sum of its proper divisors (50474373258699).

312333020423221 is an equidigital number, since it uses as much as digits as its factorization.

312333020423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7455364.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 312333020423221 its reverse (122324020333213), we get a palindrome (434657040756434).

The spelling of 312333020423221 in words is "three hundred twelve trillion, three hundred thirty-three billion, twenty million, four hundred twenty-three thousand, two hundred twenty-one".