11939632423 has 24 divisors (see below), whose sum is σ = 13288492544. Its totient is φ = 10711958400.

The previous prime is 11939632421. The next prime is 11939632459. The reversal of 11939632423 is 32423693911.

11939632423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11939632423 - 2¹ = 11939632421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11939632423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939632421) 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 23 ways as a sum of consecutive naturals, for example, 590308 + ... + 610198.

Almost surely, 2^11939632423 is an apocalyptic number.

11939632423 is a deficient number, since it is larger than the sum of its proper divisors (1348860121).

11939632423 is a wasteful number, since it uses less digits than its factorization.

11939632423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20023 (or 20006 counting only the distinct ones).

The product of its digits is 209952, while the sum is 43.

The spelling of 11939632423 in words is "eleven billion, nine hundred thirty-nine million, six hundred thirty-two thousand, four hundred twenty-three".