1121139199 has 2 divisors, whose sum is σ = 1121139200. Its totient is φ = 1121139198.

The previous prime is 1121139167. The next prime is 1121139223. The reversal of 1121139199 is 9919311211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121139199 - 2⁵ = 1121139167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121139119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560569599 + 560569600.

It is an arithmetic number, because the mean of its divisors is an integer number (560569600).

Almost surely, 2^1121139199 is an apocalyptic number.

1121139199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121139199 is an equidigital number, since it uses as much as digits as its factorization.

1121139199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 37.

The square root of 1121139199 is about 33483.4167760699. The cubic root of 1121139199 is about 1038.8508013023.

It can be divided in two parts, 112 and 1139199, that added together give a palindrome (1139311).

The spelling of 1121139199 in words is "one billion, one hundred twenty-one million, one hundred thirty-nine thousand, one hundred ninety-nine".