12003511199 has 4 divisors (see below), whose sum is σ = 12077152536. Its totient is φ = 11929869864.

The previous prime is 12003511183. The next prime is 12003511207. The reversal of 12003511199 is 99111530021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99111530021 = 7 ⋅14158790003.

It is a cyclic number.

It is not a de Polignac number, because 12003511199 - 2⁴ = 12003511183 is a prime.

It is a super-2 number, since 2×12003511199² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003511139) 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, 36820424 + ... + 36820749.

It is an arithmetic number, because the mean of its divisors is an integer number (3019288134).

Almost surely, 2^12003511199 is an apocalyptic number.

12003511199 is a deficient number, since it is larger than the sum of its proper divisors (73641337).

12003511199 is an equidigital number, since it uses as much as digits as its factorization.

12003511199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73641336.

The product of its (nonzero) digits is 2430, while the sum is 32.

The spelling of 12003511199 in words is "twelve billion, three million, five hundred eleven thousand, one hundred ninety-nine".