12631205144 has 32 divisors (see below), whose sum is σ = 23977668000. Its totient is φ = 6237533952.

The previous prime is 12631205107. The next prime is 12631205179. The reversal of 12631205144 is 44150213621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249797 + ... + 296075.

It is an arithmetic number, because the mean of its divisors is an integer number (749302125).

Almost surely, 2^12631205144 is an apocalyptic number.

It is an amenable number.

12631205144 is a deficient number, since it is larger than the sum of its proper divisors (11346462856).

12631205144 is a wasteful number, since it uses less digits than its factorization.

12631205144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46707 (or 46703 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 12631205144 its reverse (44150213621), we get a palindrome (56781418765).

The spelling of 12631205144 in words is "twelve billion, six hundred thirty-one million, two hundred five thousand, one hundred forty-four".