110111010555989 has 4 divisors (see below), whose sum is σ = 110170626697824. Its totient is φ = 110051394414156.

The previous prime is 110111010555977. The next prime is 110111010556013. The reversal of 110111010555989 is 989555010111011.

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 a de Polignac number, because none of the positive numbers 2^k-110111010555989 is a prime.

It is a super-2 number, since 2×110111010555989² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111090555989) 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, 29808068147 + ... + 29808071840.

It is an arithmetic number, because the mean of its divisors is an integer number (27542656674456).

Almost surely, 2^{110111010555989} is an apocalyptic number.

It is an amenable number.

110111010555989 is a deficient number, since it is larger than the sum of its proper divisors (59616141835).

110111010555989 is an equidigital number, since it uses as much as digits as its factorization.

110111010555989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59616141834.

The product of its (nonzero) digits is 81000, while the sum is 47.

The spelling of 110111010555989 in words is "one hundred ten trillion, one hundred eleven billion, ten million, five hundred fifty-five thousand, nine hundred eighty-nine".