11852231999 has 4 divisors (see below), whose sum is σ = 11864882064. Its totient is φ = 11839581936.

The previous prime is 11852231869. The next prime is 11852232019. The reversal of 11852231999 is 99913225811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11852231999 - 2²⁰ = 11851183423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11852231099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6323627 + ... + 6325500.

It is an arithmetic number, because the mean of its divisors is an integer number (2966220516).

Almost surely, 2^11852231999 is an apocalyptic number.

11852231999 is a deficient number, since it is larger than the sum of its proper divisors (12650065).

11852231999 is an equidigital number, since it uses as much as digits as its factorization.

11852231999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12650064.

The product of its digits is 349920, while the sum is 50.

The spelling of 11852231999 in words is "eleven billion, eight hundred fifty-two million, two hundred thirty-one thousand, nine hundred ninety-nine".