312131402241443 has 4 divisors (see below), whose sum is σ = 312131991389040. Its totient is φ = 312130813093848.

The previous prime is 312131402241317. The next prime is 312131402241523. The reversal of 312131402241443 is 344142204131213.

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 312131402241443 - 2⁸ = 312131402241187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312131402240443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293778380 + ... + 294838937.

It is an arithmetic number, because the mean of its divisors is an integer number (78032997847260).

Almost surely, 2^{312131402241443} is an apocalyptic number.

312131402241443 is a deficient number, since it is larger than the sum of its proper divisors (589147597).

312131402241443 is an equidigital number, since it uses as much as digits as its factorization.

312131402241443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589147596.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 312131402241443 its reverse (344142204131213), we get a palindrome (656273606372656).

The spelling of 312131402241443 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred two million, two hundred forty-one thousand, four hundred forty-three".