12111052799 has 4 divisors (see below), whose sum is σ = 12637620336. Its totient is φ = 11584485264.

The previous prime is 12111052781. The next prime is 12111052801. The reversal of 12111052799 is 99725011121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99725011121 = 709 ⋅140655869.

It is a cyclic number.

It is not a de Polignac number, because 12111052799 - 2¹⁶ = 12110987263 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 (12111052729) 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, 263283734 + ... + 263283779.

It is an arithmetic number, because the mean of its divisors is an integer number (3159405084).

Almost surely, 2^12111052799 is an apocalyptic number.

12111052799 is a deficient number, since it is larger than the sum of its proper divisors (526567537).

12111052799 is an equidigital number, since it uses as much as digits as its factorization.

12111052799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526567536.

The product of its (nonzero) digits is 11340, while the sum is 38.

The spelling of 12111052799 in words is "twelve billion, one hundred eleven million, fifty-two thousand, seven hundred ninety-nine".