12347251087 has 4 divisors (see below), whose sum is σ = 12398484736. Its totient is φ = 12296017440.

The previous prime is 12347251073. The next prime is 12347251129. The reversal of 12347251087 is 78015274321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78015274321 = 2269 ⋅34383109.

It is a cyclic number.

It is not a de Polignac number, because 12347251087 - 2²³ = 12338862479 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 (12347251067) 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, 25616463 + ... + 25616944.

It is an arithmetic number, because the mean of its divisors is an integer number (3099621184).

Almost surely, 2^12347251087 is an apocalyptic number.

12347251087 is a deficient number, since it is larger than the sum of its proper divisors (51233649).

12347251087 is an equidigital number, since it uses as much as digits as its factorization.

12347251087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51233648.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 12347251087 in words is "twelve billion, three hundred forty-seven million, two hundred fifty-one thousand, eighty-seven".