12117252751 has 8 divisors (see below), whose sum is σ = 12658834944. Its totient is φ = 11585089560.

The previous prime is 12117252739. The next prime is 12117252761. The reversal of 12117252751 is 15725271121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12117252751 - 2²¹ = 12115155599 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 (12117252761) 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 7 ways as a sum of consecutive naturals, for example, 2352121 + ... + 2357266.

It is an arithmetic number, because the mean of its divisors is an integer number (1582354368).

Almost surely, 2^12117252751 is an apocalyptic number.

12117252751 is a deficient number, since it is larger than the sum of its proper divisors (541582193).

12117252751 is an equidigital number, since it uses as much as digits as its factorization.

12117252751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709501.

The product of its digits is 9800, while the sum is 34.

The spelling of 12117252751 in words is "twelve billion, one hundred seventeen million, two hundred fifty-two thousand, seven hundred fifty-one".