12312004441 has 4 divisors (see below), whose sum is σ = 13431277584. Its totient is φ = 11192731300.

The previous prime is 12312004409. The next prime is 12312004447. The reversal of 12312004441 is 14440021321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12312004441 - 2⁵ = 12312004409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312004447) 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, 559636555 + ... + 559636576.

It is an arithmetic number, because the mean of its divisors is an integer number (3357819396).

Almost surely, 2^12312004441 is an apocalyptic number.

12312004441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12312004441 is a deficient number, since it is larger than the sum of its proper divisors (1119273143).

12312004441 is a wasteful number, since it uses less digits than its factorization.

12312004441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119273142.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12312004441 its reverse (14440021321), we get a palindrome (26752025762).

The spelling of 12312004441 in words is "twelve billion, three hundred twelve million, four thousand, four hundred forty-one".