11821407039 has 12 divisors (see below), whose sum is σ = 18388855576. Its totient is φ = 7274711952.

The previous prime is 11821406951. The next prime is 11821407047. The reversal of 11821407039 is 93070412811.

It is a happy number.

It is not a de Polignac number, because 11821407039 - 2²⁹ = 11284536127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11821406994 and 11821407012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821407089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50518717 + ... + 50518950.

Almost surely, 2^11821407039 is an apocalyptic number.

11821407039 is a deficient number, since it is larger than the sum of its proper divisors (6567448537).

11821407039 is a wasteful number, since it uses less digits than its factorization.

11821407039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101037686 (or 101037683 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 11821407039 in words is "eleven billion, eight hundred twenty-one million, four hundred seven thousand, thirty-nine".