12157115063 has 2 divisors, whose sum is σ = 12157115064. Its totient is φ = 12157115062.

The previous prime is 12157115039. The next prime is 12157115077. The reversal of 12157115063 is 36051175121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12157115063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12157115263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6078557531 + 6078557532.

It is an arithmetic number, because the mean of its divisors is an integer number (6078557532).

Almost surely, 2^12157115063 is an apocalyptic number.

12157115063 is a deficient number, since it is larger than the sum of its proper divisors (1).

12157115063 is an equidigital number, since it uses as much as digits as its factorization.

12157115063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 12157115063 in words is "twelve billion, one hundred fifty-seven million, one hundred fifteen thousand, sixty-three".