1200110111999 has 2 divisors, whose sum is σ = 1200110112000. Its totient is φ = 1200110111998.

The previous prime is 1200110111987. The next prime is 1200110112053. The reversal of 1200110111999 is 9991110110021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200110111999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200110111909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600055055999 + 600055056000.

It is an arithmetic number, because the mean of its divisors is an integer number (600055056000).

Almost surely, 2^{1200110111999} is an apocalyptic number.

1200110111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200110111999 is an equidigital number, since it uses as much as digits as its factorization.

1200110111999 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 1200110111999 in words is "one trillion, two hundred billion, one hundred ten million, one hundred eleven thousand, nine hundred ninety-nine".