1091100119 has 2 divisors, whose sum is σ = 1091100120. Its totient is φ = 1091100118.

The previous prime is 1091099987. The next prime is 1091100167. The reversal of 1091100119 is 9110011901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1091100119 is a prime.

It is a super-2 number, since 2×1091100119² = 2380998939363628322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1091100094 and 1091100103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1091100169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545550059 + 545550060.

It is an arithmetic number, because the mean of its divisors is an integer number (545550060).

Almost surely, 2^1091100119 is an apocalyptic number.

1091100119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091100119 is an equidigital number, since it uses as much as digits as its factorization.

1091100119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 1091100119 is about 33031.8046585408. The cubic root of 1091100119 is about 1029.4885823201.

The spelling of 1091100119 in words is "one billion, ninety-one million, one hundred thousand, one hundred nineteen".