12111203312999 has 12 divisors (see below), whose sum is σ = 14107763056824. Its totient is φ = 10366868991024.

The previous prime is 12111203312959. The next prime is 12111203313017. The reversal of 12111203312999 is 99921330211121.

It is a de Polignac number, because none of the positive numbers 2^k-12111203312999 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 (12111203312959) 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, 168563957 + ... + 168635790.

It is an arithmetic number, because the mean of its divisors is an integer number (1175646921402).

Almost surely, 2^{12111203312999} is an apocalyptic number.

12111203312999 is a deficient number, since it is larger than the sum of its proper divisors (1996559743825).

12111203312999 is an equidigital number, since it uses as much as digits as its factorization.

12111203312999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337200494 (or 337200487 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 12111203312999 in words is "twelve trillion, one hundred eleven billion, two hundred three million, three hundred twelve thousand, nine hundred ninety-nine".