12432120995 has 24 divisors (see below), whose sum is σ = 18375069024. Its totient is φ = 8023416576.

The previous prime is 12432120989. The next prime is 12432121061. The reversal of 12432120995 is 59902123421.

It is a happy number.

It is not a de Polignac number, because 12432120995 - 2⁸ = 12432120739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488287 + ... + 1496616.

It is an arithmetic number, because the mean of its divisors is an integer number (765627876).

Almost surely, 2^12432120995 is an apocalyptic number.

12432120995 is a deficient number, since it is larger than the sum of its proper divisors (5942948029).

12432120995 is a wasteful number, since it uses less digits than its factorization.

12432120995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984939 (or 2984932 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 12432120995 in words is "twelve billion, four hundred thirty-two million, one hundred twenty thousand, nine hundred ninety-five".