1100044091 has 2 divisors, whose sum is σ = 1100044092. Its totient is φ = 1100044090.

The previous prime is 1100044087. The next prime is 1100044093. The reversal of 1100044091 is 1904400011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100044091 - 2² = 1100044087 is a prime.

Together with 1100044093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1100044093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550022045 + 550022046.

It is an arithmetic number, because the mean of its divisors is an integer number (550022046).

Almost surely, 2^1100044091 is an apocalyptic number.

1100044091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100044091 is an equidigital number, since it uses as much as digits as its factorization.

1100044091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1100044091 is about 33166.9125937281. The cubic root of 1100044091 is about 1032.2939074729.

The spelling of 1100044091 in words is "one billion, one hundred million, forty-four thousand, ninety-one".