1100202091 has 2 divisors, whose sum is σ = 1100202092. Its totient is φ = 1100202090.

The previous prime is 1100202043. The next prime is 1100202113. The reversal of 1100202091 is 1902020011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100202091 - 2⁹ = 1100201579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100200091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550101045 + 550101046.

It is an arithmetic number, because the mean of its divisors is an integer number (550101046).

Almost surely, 2^1100202091 is an apocalyptic number.

1100202091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100202091 is an equidigital number, since it uses as much as digits as its factorization.

1100202091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1100202091 is about 33169.2944000924. The cubic root of 1100202091 is about 1032.3433281069.

The spelling of 1100202091 in words is "one billion, one hundred million, two hundred two thousand, ninety-one".