12371170157 has 2 divisors, whose sum is σ = 12371170158. Its totient is φ = 12371170156.

The previous prime is 12371170153. The next prime is 12371170243. The reversal of 12371170157 is 75107117321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7010880361 + 5360289796 = 83731^2 + 73214^2 .

It is a cyclic number.

It is not a de Polignac number, because 12371170157 - 2² = 12371170153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12371170153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6185585078 + 6185585079.

It is an arithmetic number, because the mean of its divisors is an integer number (6185585079).

Almost surely, 2^12371170157 is an apocalyptic number.

It is an amenable number.

12371170157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12371170157 is an equidigital number, since it uses as much as digits as its factorization.

12371170157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10290, while the sum is 35.

Adding to 12371170157 its reverse (75107117321), we get a palindrome (87478287478).

The spelling of 12371170157 in words is "twelve billion, three hundred seventy-one million, one hundred seventy thousand, one hundred fifty-seven".