12157061113529 has 2 divisors, whose sum is σ = 12157061113530. Its totient is φ = 12157061113528.

The previous prime is 12157061113501. The next prime is 12157061113601. The reversal of 12157061113529 is 92531116075121.

12157061113529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6919609165225 + 5237451948304 = 2630515^2 + 2288548^2 .

It is an emirp because it is prime and its reverse (92531116075121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12157061113529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12157061113529.

It is not a weakly prime, because it can be changed into another prime (12157061113429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6078530556764 + 6078530556765.

It is an arithmetic number, because the mean of its divisors is an integer number (6078530556765).

Almost surely, 2^{12157061113529} is an apocalyptic number.

It is an amenable number.

12157061113529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12157061113529 is an equidigital number, since it uses as much as digits as its factorization.

12157061113529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 44.

The spelling of 12157061113529 in words is "twelve trillion, one hundred fifty-seven billion, sixty-one million, one hundred thirteen thousand, five hundred twenty-nine".