312023121444 has 72 divisors (see below), whose sum is σ = 795592598528. Its totient is φ = 103103461440.

The previous prime is 312023121439. The next prime is 312023121451. The reversal of 312023121444 is 444121320213.

312023121444 is a `hidden beast` number, since 3 + 1 + 202 + 3 + 12 + 1 + 444 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5627979 + ... + 5683149.

Almost surely, 2^312023121444 is an apocalyptic number.

It is an amenable number.

312023121444 is an abundant number, since it is smaller than the sum of its proper divisors (483569477084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312023121444 is a wasteful number, since it uses less digits than its factorization.

312023121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56545 (or 56540 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 312023121444 its reverse (444121320213), we get a palindrome (756144441657).

The spelling of 312023121444 in words is "three hundred twelve billion, twenty-three million, one hundred twenty-one thousand, four hundred forty-four".