1111111110099 has 16 divisors (see below), whose sum is σ = 1681113738240. Its totient is φ = 724980297960.

The previous prime is 1111111110089. The next prime is 1111111110101. The reversal of 1111111110099 is 9900111111111.

It is not a de Polignac number, because 1111111110099 - 2²⁷ = 1110976892371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111111110079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437788767 + ... + 437791304.

It is an arithmetic number, because the mean of its divisors is an integer number (105069608640).

Almost surely, 2^{1111111110099} is an apocalyptic number.

1111111110099 is a deficient number, since it is larger than the sum of its proper divisors (570002628141).

1111111110099 is an equidigital number, since it uses as much as digits as its factorization.

1111111110099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875580127 (or 875580121 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 27.

The spelling of 1111111110099 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred ten thousand, ninety-nine".