111110101011090 has 48 divisors (see below), whose sum is σ = 305879572199448. Its totient is φ = 27886456723968.

The previous prime is 111110101011083. The next prime is 111110101011109. The reversal of 111110101011090 is 90110101011111.

It can be written as a sum of positive squares in 4 ways, for example, as 110009534262849 + 1100566748241 = 10488543^2 + 1049079^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36310488997 + ... + 36310492056.

Almost surely, 2^{111110101011090} is an apocalyptic number.

111110101011090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111110101011090 is an abundant number, since it is smaller than the sum of its proper divisors (194769471188358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111110101011090 is a wasteful number, since it uses less digits than its factorization.

111110101011090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72620981083 (or 72620981080 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

The spelling of 111110101011090 in words is "one hundred eleven trillion, one hundred ten billion, one hundred one million, eleven thousand, ninety".