12444431410121 has 4 divisors (see below), whose sum is σ = 12444439455744. Its totient is φ = 12444423364500.

The previous prime is 12444431410067. The next prime is 12444431410153. The reversal of 12444431410121 is 12101413444421.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12444431410121 - 2³⁰ = 12443357668297 is a prime.

It is a super-2 number, since 2×12444431410121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444431410421) 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, 888905 + ... + 5067446.

It is an arithmetic number, because the mean of its divisors is an integer number (3111109863936).

Almost surely, 2^{12444431410121} is an apocalyptic number.

It is an amenable number.

12444431410121 is a deficient number, since it is larger than the sum of its proper divisors (8045623).

12444431410121 is an equidigital number, since it uses as much as digits as its factorization.

12444431410121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045622.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 12444431410121 its reverse (12101413444421), we get a palindrome (24545844854542).

The spelling of 12444431410121 in words is "twelve trillion, four hundred forty-four billion, four hundred thirty-one million, four hundred ten thousand, one hundred twenty-one".