1121203099 has 2 divisors, whose sum is σ = 1121203100. Its totient is φ = 1121203098.

The previous prime is 1121203087. The next prime is 1121203147. The reversal of 1121203099 is 9903021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121203099 - 2¹⁷ = 1121072027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121203079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560601549 + 560601550.

It is an arithmetic number, because the mean of its divisors is an integer number (560601550).

Almost surely, 2^1121203099 is an apocalyptic number.

1121203099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121203099 is an equidigital number, since it uses as much as digits as its factorization.

1121203099 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 28.

The square root of 1121203099 is about 33484.3709661687. The cubic root of 1121203099 is about 1038.8705375686.

The spelling of 1121203099 in words is "one billion, one hundred twenty-one million, two hundred three thousand, ninety-nine".