312131124020423 has 4 divisors (see below), whose sum is σ = 312135007826160. Its totient is φ = 312127240214688.

The previous prime is 312131124020413. The next prime is 312131124020501. The reversal of 312131124020423 is 324020421131213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312131124020423 - 2¹⁰ = 312131124019399 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 (312131124020413) 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 3 ways as a sum of consecutive naturals, for example, 1941782315 + ... + 1941943052.

It is an arithmetic number, because the mean of its divisors is an integer number (78033751956540).

Almost surely, 2^{312131124020423} is an apocalyptic number.

312131124020423 is a deficient number, since it is larger than the sum of its proper divisors (3883805737).

312131124020423 is an equidigital number, since it uses as much as digits as its factorization.

312131124020423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883805736.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 312131124020423 its reverse (324020421131213), we get a palindrome (636151545151636).

The spelling of 312131124020423 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred twenty-four million, twenty thousand, four hundred twenty-three".