1121911199 has 2 divisors, whose sum is σ = 1121911200. Its totient is φ = 1121911198.

The previous prime is 1121911159. The next prime is 1121911211. The reversal of 1121911199 is 9911191211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121911199 - 2¹⁶ = 1121845663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121911129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560955599 + 560955600.

It is an arithmetic number, because the mean of its divisors is an integer number (560955600).

Almost surely, 2^1121911199 is an apocalyptic number.

1121911199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121911199 is an equidigital number, since it uses as much as digits as its factorization.

1121911199 is an evil number, because the sum of its binary digits is even.

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

The square root of 1121911199 is about 33494.9428869494. The cubic root of 1121911199 is about 1039.0891923988.

The spelling of 1121911199 in words is "one billion, one hundred twenty-one million, nine hundred eleven thousand, one hundred ninety-nine".