1100120111999 has 2 divisors, whose sum is σ = 1100120112000. Its totient is φ = 1100120111998.

The previous prime is 1100120111939. The next prime is 1100120112011. The reversal of 1100120111999 is 9991110210011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100120111999 - 2²⁰ = 1100119063423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100120111939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550060055999 + 550060056000.

It is an arithmetic number, because the mean of its divisors is an integer number (550060056000).

Almost surely, 2^{1100120111999} is an apocalyptic number.

1100120111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100120111999 is an equidigital number, since it uses as much as digits as its factorization.

1100120111999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 35.

The spelling of 1100120111999 in words is "one trillion, one hundred billion, one hundred twenty million, one hundred eleven thousand, nine hundred ninety-nine".