12631323523 has 16 divisors (see below), whose sum is σ = 15550044160. Its totient is φ = 9991571616.

The previous prime is 12631323503. The next prime is 12631323547. The reversal of 12631323523 is 32532313621.

12631323523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12631323523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12631323503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418486 + ... + 447652.

It is an arithmetic number, because the mean of its divisors is an integer number (971877760).

Almost surely, 2^12631323523 is an apocalyptic number.

12631323523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12631323523 is a deficient number, since it is larger than the sum of its proper divisors (2918720637).

12631323523 is a wasteful number, since it uses less digits than its factorization.

12631323523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33946.

The product of its digits is 19440, while the sum is 31.

The spelling of 12631323523 in words is "twelve billion, six hundred thirty-one million, three hundred twenty-three thousand, five hundred twenty-three".