1110555111001 has 4 divisors (see below), whose sum is σ = 1269205841152. Its totient is φ = 951904380852.

The previous prime is 1110555110843. The next prime is 1110555111013. The reversal of 1110555111001 is 1001115550111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1110555111001 - 2²⁵ = 1110521556569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110555111101) 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, 79325365065 + ... + 79325365078.

It is an arithmetic number, because the mean of its divisors is an integer number (317301460288).

Almost surely, 2^{1110555111001} is an apocalyptic number.

It is an amenable number.

1110555111001 is a deficient number, since it is larger than the sum of its proper divisors (158650730151).

1110555111001 is an equidigital number, since it uses as much as digits as its factorization.

1110555111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158650730150.

The product of its (nonzero) digits is 125, while the sum is 22.

The spelling of 1110555111001 in words is "one trillion, one hundred ten billion, five hundred fifty-five million, one hundred eleven thousand, one".