12536131026 has 16 divisors (see below), whose sum is σ = 25073497728. Its totient is φ = 4178504400.

The previous prime is 12536131019. The next prime is 12536131031. The reversal of 12536131026 is 62013163521.

It is a super-2 number, since 2×12536131026² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12536130984 and 12536131002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129156 + ... + 204336.

It is an arithmetic number, because the mean of its divisors is an integer number (1567093608).

Almost surely, 2^12536131026 is an apocalyptic number.

12536131026 is an abundant number, since it is smaller than the sum of its proper divisors (12537366702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12536131026 is a wasteful number, since it uses less digits than its factorization.

12536131026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102977.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 12536131026 its reverse (62013163521), we get a palindrome (74549294547).

The spelling of 12536131026 in words is "twelve billion, five hundred thirty-six million, one hundred thirty-one thousand, twenty-six".