12115013051 has 4 divisors (see below), whose sum is σ = 12139687704. Its totient is φ = 12090338400.

The previous prime is 12115013041. The next prime is 12115013083. The reversal of 12115013051 is 15031051121.

It is a happy number.

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 12115013051 - 2¹⁴ = 12114996667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12115013041) 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, 12336590 + ... + 12337571.

It is an arithmetic number, because the mean of its divisors is an integer number (3034921926).

Almost surely, 2^12115013051 is an apocalyptic number.

12115013051 is a deficient number, since it is larger than the sum of its proper divisors (24674653).

12115013051 is an equidigital number, since it uses as much as digits as its factorization.

12115013051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24674652.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 12115013051 its reverse (15031051121), we get a palindrome (27146064172).

The spelling of 12115013051 in words is "twelve billion, one hundred fifteen million, thirteen thousand, fifty-one".