11052131999 has 4 divisors (see below), whose sum is σ = 11131643880. Its totient is φ = 10972620120.

The previous prime is 11052131963. The next prime is 11052132131. The reversal of 11052131999 is 99913125011.

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 11052131999 - 2¹² = 11052127903 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 (11052131929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39755732 + ... + 39756009.

It is an arithmetic number, because the mean of its divisors is an integer number (2782910970).

Almost surely, 2^11052131999 is an apocalyptic number.

11052131999 is a deficient number, since it is larger than the sum of its proper divisors (79511881).

11052131999 is an equidigital number, since it uses as much as digits as its factorization.

11052131999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79511880.

The product of its (nonzero) digits is 21870, while the sum is 41.

The spelling of 11052131999 in words is "eleven billion, fifty-two million, one hundred thirty-one thousand, nine hundred ninety-nine".