12126516751 has 2 divisors, whose sum is σ = 12126516752. Its totient is φ = 12126516750.

The previous prime is 12126516719. The next prime is 12126516763. The reversal of 12126516751 is 15761562121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12126516751 - 2⁵ = 12126516719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12126516751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12126316751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063258375 + 6063258376.

It is an arithmetic number, because the mean of its divisors is an integer number (6063258376).

Almost surely, 2^12126516751 is an apocalyptic number.

12126516751 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126516751 is an equidigital number, since it uses as much as digits as its factorization.

12126516751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 37.

The spelling of 12126516751 in words is "twelve billion, one hundred twenty-six million, five hundred sixteen thousand, seven hundred fifty-one".