12511115053 has 2 divisors, whose sum is σ = 12511115054. Its totient is φ = 12511115052.

The previous prime is 12511115051. The next prime is 12511115077. The reversal of 12511115053 is 35051111521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11680637929 + 830477124 = 108077^2 + 28818^2 .

It is a cyclic number.

It is not a de Polignac number, because 12511115053 - 2¹ = 12511115051 is a prime.

Together with 12511115051, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12511115051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255557526 + 6255557527.

It is an arithmetic number, because the mean of its divisors is an integer number (6255557527).

Almost surely, 2^12511115053 is an apocalyptic number.

It is an amenable number.

12511115053 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511115053 is an equidigital number, since it uses as much as digits as its factorization.

12511115053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 12511115053 its reverse (35051111521), we get a palindrome (47562226574).

The spelling of 12511115053 in words is "twelve billion, five hundred eleven million, one hundred fifteen thousand, fifty-three".