12115031553137 has 2 divisors, whose sum is σ = 12115031553138. Its totient is φ = 12115031553136.

The previous prime is 12115031553133. The next prime is 12115031553193. The reversal of 12115031553137 is 73135513051121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9236712326416 + 2878319226721 = 3039196^2 + 1696561^2 .

It is an emirp because it is prime and its reverse (73135513051121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12115031553137 - 2² = 12115031553133 is a prime.

It is a super-2 number, since 2×12115031553137² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12115031553137.

It is not a weakly prime, because it can be changed into another prime (12115031553133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6057515776568 + 6057515776569.

It is an arithmetic number, because the mean of its divisors is an integer number (6057515776569).

Almost surely, 2^{12115031553137} is an apocalyptic number.

It is an amenable number.

12115031553137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12115031553137 is an equidigital number, since it uses as much as digits as its factorization.

12115031553137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 38.

The spelling of 12115031553137 in words is "twelve trillion, one hundred fifteen billion, thirty-one million, five hundred fifty-three thousand, one hundred thirty-seven".