12157089127 has 2 divisors, whose sum is σ = 12157089128. Its totient is φ = 12157089126.

The previous prime is 12157089103. The next prime is 12157089187. The reversal of 12157089127 is 72198075121.

It is a weak prime.

It is an emirp because it is prime and its reverse (72198075121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12157089127 - 2²³ = 12148700519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12157089187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6078544563 + 6078544564.

It is an arithmetic number, because the mean of its divisors is an integer number (6078544564).

Almost surely, 2^12157089127 is an apocalyptic number.

12157089127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12157089127 is an equidigital number, since it uses as much as digits as its factorization.

12157089127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 43.

The spelling of 12157089127 in words is "twelve billion, one hundred fifty-seven million, eighty-nine thousand, one hundred twenty-seven".