312403100231421 has 12 divisors (see below), whose sum is σ = 451519617792672. Its totient is φ = 208143797224776.

The previous prime is 312403100231407. The next prime is 312403100231441. The reversal of 312403100231421 is 124132001304213.

312403100231421 is a `hidden beast` number, since 3 + 1 + 2 + 4 + 0 + 3 + 1 + 0 + 0 + 231 + 421 = 666.

It is not a de Polignac number, because 312403100231421 - 2³¹ = 312400952747773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312403100231441) 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 11 ways as a sum of consecutive naturals, for example, 10411339401 + ... + 10411369406.

It is an arithmetic number, because the mean of its divisors is an integer number (37626634816056).

Almost surely, 2^{312403100231421} is an apocalyptic number.

It is an amenable number.

312403100231421 is a deficient number, since it is larger than the sum of its proper divisors (139116517561251).

312403100231421 is a wasteful number, since it uses less digits than its factorization.

312403100231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20822710480 (or 20822710477 counting only the distinct ones).

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

Adding to 312403100231421 its reverse (124132001304213), we get a palindrome (436535101535634).

The spelling of 312403100231421 in words is "three hundred twelve trillion, four hundred three billion, one hundred million, two hundred thirty-one thousand, four hundred twenty-one".