1111100099 has 4 divisors (see below), whose sum is σ = 1111256520. Its totient is φ = 1110943680.

The previous prime is 1111100063. The next prime is 1111100101. The reversal of 1111100099 is 9900011111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9900011111 = 433 ⋅22863767.

It is a cyclic number.

It is not a de Polignac number, because 1111100099 - 2²⁸ = 842664643 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111103099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67022 + ... + 81939.

It is an arithmetic number, because the mean of its divisors is an integer number (277814130).

Almost surely, 2^1111100099 is an apocalyptic number.

1111100099 is a deficient number, since it is larger than the sum of its proper divisors (156421).

1111100099 is an equidigital number, since it uses as much as digits as its factorization.

1111100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156420.

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

The square root of 1111100099 is about 33333.1681512574. The cubic root of 1111100099 is about 1035.7407469210.

The spelling of 1111100099 in words is "one billion, one hundred eleven million, one hundred thousand, ninety-nine".