12054355199 has 4 divisors (see below), whose sum is σ = 12061631664. Its totient is φ = 12047078736.

The previous prime is 12054355147. The next prime is 12054355213. The reversal of 12054355199 is 99155345021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99155345021 = 2063 ⋅48063667.

It is a cyclic number.

It is not a de Polignac number, because 12054355199 - 2²⁰ = 12053306623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054355099) 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, 3635747 + ... + 3639060.

It is an arithmetic number, because the mean of its divisors is an integer number (3015407916).

Almost surely, 2^12054355199 is an apocalyptic number.

12054355199 is a deficient number, since it is larger than the sum of its proper divisors (7276465).

12054355199 is an equidigital number, since it uses as much as digits as its factorization.

12054355199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276464.

The product of its (nonzero) digits is 243000, while the sum is 44.

The spelling of 12054355199 in words is "twelve billion, fifty-four million, three hundred fifty-five thousand, one hundred ninety-nine".