1121341999 has 2 divisors, whose sum is σ = 1121342000. Its totient is φ = 1121341998.

The previous prime is 1121341973. The next prime is 1121342011. The reversal of 1121341999 is 9991431211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121341999 - 2²⁵ = 1087787567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121341909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560670999 + 560671000.

It is an arithmetic number, because the mean of its divisors is an integer number (560671000).

Almost surely, 2^1121341999 is an apocalyptic number.

1121341999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121341999 is an equidigital number, since it uses as much as digits as its factorization.

1121341999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 40.

The square root of 1121341999 is about 33486.4450039117. The cubic root of 1121341999 is about 1038.9134358800.

The spelling of 1121341999 in words is "one billion, one hundred twenty-one million, three hundred forty-one thousand, nine hundred ninety-nine".