312343021010421 has 40 divisors (see below), whose sum is σ = 471109375243584. Its totient is φ = 206211543197760.

The previous prime is 312343021010407. The next prime is 312343021010431. The reversal of 312343021010421 is 124010120343213.

312343021010421 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 430 + 210 + 10 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 312343021010421 - 2⁶ = 312343021010357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312343021010401) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18953241 + ... + 31367361.

Almost surely, 2^{312343021010421} is an apocalyptic number.

It is an amenable number.

312343021010421 is a deficient number, since it is larger than the sum of its proper divisors (158766354233163).

312343021010421 is a wasteful number, since it uses less digits than its factorization.

312343021010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12417143 (or 12417134 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 312343021010421 its reverse (124010120343213), we get a palindrome (436353141353634).

The spelling of 312343021010421 in words is "three hundred twelve trillion, three hundred forty-three billion, twenty-one million, ten thousand, four hundred twenty-one".