312440234544423 has 36 divisors (see below), whose sum is σ = 467468071663320. Its totient is φ = 201082244526912.

The previous prime is 312440234544181. The next prime is 312440234544469. The reversal of 312440234544423 is 324445432044213.

312440234544423 is a `hidden beast` number, since 3 + 1 + 2 + 4 + 40 + 23 + 4 + 544 + 42 + 3 = 666.

It is not a de Polignac number, because 312440234544423 - 2⁸ = 312440234544167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312440234548423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50138368 + ... + 56024426.

It is an arithmetic number, because the mean of its divisors is an integer number (12985224212870).

Almost surely, 2^{312440234544423} is an apocalyptic number.

312440234544423 is a deficient number, since it is larger than the sum of its proper divisors (155027837118897).

312440234544423 is a wasteful number, since it uses less digits than its factorization.

312440234544423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893136 (or 5893104 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 45.

Adding to 312440234544423 its reverse (324445432044213), we get a palindrome (636885666588636).

The spelling of 312440234544423 in words is "three hundred twelve trillion, four hundred forty billion, two hundred thirty-four million, five hundred forty-four thousand, four hundred twenty-three".