1121123099 has 2 divisors, whose sum is σ = 1121123100. Its totient is φ = 1121123098.

The previous prime is 1121123057. The next prime is 1121123111. The reversal of 1121123099 is 9903211211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121123099 is a prime.

It is a super-2 number, since 2×1121123099² = 2513834006222727602, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1121125099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560561549 + 560561550.

It is an arithmetic number, because the mean of its divisors is an integer number (560561550).

Almost surely, 2^1121123099 is an apocalyptic number.

1121123099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121123099 is an equidigital number, since it uses as much as digits as its factorization.

1121123099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 1121123099 is about 33483.1763576875. The cubic root of 1121123099 is about 1038.8458285098.

It can be divided in two parts, 112 and 1123099, that added together give a palindrome (1123211).

The spelling of 1121123099 in words is "one billion, one hundred twenty-one million, one hundred twenty-three thousand, ninety-nine".