1123090099 has 2 divisors, whose sum is σ = 1123090100. Its totient is φ = 1123090098.

The previous prime is 1123090079. The next prime is 1123090121. The reversal of 1123090099 is 9900903211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123090099 - 2⁹ = 1123089587 is a prime.

It is a super-2 number, since 2×1123090099² = 2522662740943659602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123090009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561545049 + 561545050.

It is an arithmetic number, because the mean of its divisors is an integer number (561545050).

Almost surely, 2^1123090099 is an apocalyptic number.

1123090099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123090099 is an equidigital number, since it uses as much as digits as its factorization.

1123090099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1123090099 is about 33512.5364453364. The cubic root of 1123090099 is about 1039.4530219756.

The spelling of 1123090099 in words is "one billion, one hundred twenty-three million, ninety thousand, ninety-nine".