12135501089 has 2 divisors, whose sum is σ = 12135501090. Its totient is φ = 12135501088.

The previous prime is 12135501073. The next prime is 12135501113. The reversal of 12135501089 is 98010553121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12057796864 + 77704225 = 109808^2 + 8815^2 .

It is a cyclic number.

It is not a de Polignac number, because 12135501089 - 2⁴ = 12135501073 is a prime.

It is a super-2 number, since 2×12135501089² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12135501019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067750544 + 6067750545.

It is an arithmetic number, because the mean of its divisors is an integer number (6067750545).

Almost surely, 2^12135501089 is an apocalyptic number.

It is an amenable number.

12135501089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135501089 is an equidigital number, since it uses as much as digits as its factorization.

12135501089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 35.

The spelling of 12135501089 in words is "twelve billion, one hundred thirty-five million, five hundred one thousand, eighty-nine".