1121378299 has 2 divisors, whose sum is σ = 1121378300. Its totient is φ = 1121378298.

The previous prime is 1121378281. The next prime is 1121378303. The reversal of 1121378299 is 9928731211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121378299 - 2⁷ = 1121378171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121378099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560689149 + 560689150.

It is an arithmetic number, because the mean of its divisors is an integer number (560689150).

Almost surely, 2^1121378299 is an apocalyptic number.

1121378299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121378299 is an equidigital number, since it uses as much as digits as its factorization.

1121378299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 1121378299 is about 33486.9870098819. The cubic root of 1121378299 is about 1038.9246463019.

The spelling of 1121378299 in words is "one billion, one hundred twenty-one million, three hundred seventy-eight thousand, two hundred ninety-nine".