312344034444021 has 16 divisors (see below), whose sum is σ = 416674700164800. Its totient is φ = 208121372083968.

The previous prime is 312344034444017. The next prime is 312344034444047. The reversal of 312344034444021 is 120444430443213.

It is a happy number.

It is not a de Polignac number, because 312344034444021 - 2² = 312344034444017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312344034442021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130559235 + ... + 132930063.

It is an arithmetic number, because the mean of its divisors is an integer number (26042168760300).

Almost surely, 2^{312344034444021} is an apocalyptic number.

It is an amenable number.

312344034444021 is a deficient number, since it is larger than the sum of its proper divisors (104330665720779).

312344034444021 is a wasteful number, since it uses less digits than its factorization.

312344034444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393588.

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 312344034444021 its reverse (120444430443213), we get a palindrome (432788464887234).

The spelling of 312344034444021 in words is "three hundred twelve trillion, three hundred forty-four billion, thirty-four million, four hundred forty-four thousand, twenty-one".