312202002142444 has 24 divisors (see below), whose sum is σ = 559761229284768. Its totient is φ = 152271338405760.

The previous prime is 312202002142441. The next prime is 312202002142447. The reversal of 312202002142444 is 444241200202213.

It is an interprime number because it is at equal distance from previous prime (312202002142441) and next prime (312202002142447).

It is not an unprimeable number, because it can be changed into a prime (312202002142441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138384967 + ... + 140622910.

It is an arithmetic number, because the mean of its divisors is an integer number (23323384553532).

Almost surely, 2^{312202002142444} is an apocalyptic number.

It is an amenable number.

312202002142444 is a deficient number, since it is larger than the sum of its proper divisors (247559227142324).

312202002142444 is a wasteful number, since it uses less digits than its factorization.

312202002142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279014745 (or 279014743 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 312202002142444 its reverse (444241200202213), we get a palindrome (756443202344657).

The spelling of 312202002142444 in words is "three hundred twelve trillion, two hundred two billion, two million, one hundred forty-two thousand, four hundred forty-four".