12544323135 has 64 divisors (see below), whose sum is σ = 21409529856. Its totient is φ = 6261494400.

The previous prime is 12544323107. The next prime is 12544323151. The reversal of 12544323135 is 53132344521.

It is not a de Polignac number, because 12544323135 - 2¹⁶ = 12544257599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12544323096 and 12544323105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2056440 + ... + 2062530.

It is an arithmetic number, because the mean of its divisors is an integer number (334523904).

Almost surely, 2^12544323135 is an apocalyptic number.

12544323135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12544323135 is a deficient number, since it is larger than the sum of its proper divisors (8865206721).

12544323135 is a wasteful number, since it uses less digits than its factorization.

12544323135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276.

The product of its digits is 43200, while the sum is 33.

Adding to 12544323135 its reverse (53132344521), we get a palindrome (65676667656).

The spelling of 12544323135 in words is "twelve billion, five hundred forty-four million, three hundred twenty-three thousand, one hundred thirty-five".