1103040091 has 2 divisors, whose sum is σ = 1103040092. Its totient is φ = 1103040090.

The previous prime is 1103040061. The next prime is 1103040161. The reversal of 1103040091 is 1900403011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1103040091 - 2⁷ = 1103039963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103040061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551520045 + 551520046.

It is an arithmetic number, because the mean of its divisors is an integer number (551520046).

Almost surely, 2^1103040091 is an apocalyptic number.

1103040091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103040091 is an equidigital number, since it uses as much as digits as its factorization.

1103040091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1103040091 is about 33212.0473774201. The cubic root of 1103040091 is about 1033.2302181416.

The spelling of 1103040091 in words is "one billion, one hundred three million, forty thousand, ninety-one".