111020099 has 4 divisors (see below), whose sum is σ = 111185736. Its totient is φ = 110854464.

The previous prime is 111020029. The next prime is 111020111. The reversal of 111020099 is 990020111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990020111 = 683 ⋅1449517.

It is a cyclic number.

It is not a de Polignac number, because 111020099 - 2²⁰ = 109971523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81809 + ... + 83154.

It is an arithmetic number, because the mean of its divisors is an integer number (27796434).

Almost surely, 2^111020099 is an apocalyptic number.

111020099 is a deficient number, since it is larger than the sum of its proper divisors (165637).

111020099 is an equidigital number, since it uses as much as digits as its factorization.

111020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165636.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 111020099 is about 10536.6075660053. The cubic root of 111020099 is about 480.6185587353.

The spelling of 111020099 in words is "one hundred eleven million, twenty thousand, ninety-nine".