12318428051 has 4 divisors (see below), whose sum is σ = 12474357600. Its totient is φ = 12162498504.

The previous prime is 12318427973. The next prime is 12318428069. The reversal of 12318428051 is 15082481321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12318428051 - 2¹⁰ = 12318427027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12318428651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77964656 + ... + 77964813.

It is an arithmetic number, because the mean of its divisors is an integer number (3118589400).

Almost surely, 2^12318428051 is an apocalyptic number.

12318428051 is a deficient number, since it is larger than the sum of its proper divisors (155929549).

12318428051 is an equidigital number, since it uses as much as digits as its factorization.

12318428051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155929548.

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 12318428051 in words is "twelve billion, three hundred eighteen million, four hundred twenty-eight thousand, fifty-one".