12631223542 has 16 divisors (see below), whose sum is σ = 21763447200. Its totient is φ = 5385901248.

The previous prime is 12631223509. The next prime is 12631223581. The reversal of 12631223542 is 24532213621.

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, 2287167 + ... + 2292682.

It is an arithmetic number, because the mean of its divisors is an integer number (1360215450).

Almost surely, 2^12631223542 is an apocalyptic number.

12631223542 is a deficient number, since it is larger than the sum of its proper divisors (9132223658).

12631223542 is a wasteful number, since it uses less digits than its factorization.

12631223542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580055.

The product of its digits is 17280, while the sum is 31.

The spelling of 12631223542 in words is "twelve billion, six hundred thirty-one million, two hundred twenty-three thousand, five hundred forty-two".