111112110101123 has 4 divisors (see below), whose sum is σ = 111155193512040. Its totient is φ = 111069026690208.

The previous prime is 111112110101059. The next prime is 111112110101287. The reversal of 111112110101123 is 321101011211111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111112110101123 - 2⁶ = 111112110101059 is a prime.

It is a super-2 number, since 2×111112110101123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111112110101323) 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, 21541701590 + ... + 21541706747.

It is an arithmetic number, because the mean of its divisors is an integer number (27788798378010).

Almost surely, 2^{111112110101123} is an apocalyptic number.

111112110101123 is a deficient number, since it is larger than the sum of its proper divisors (43083410917).

111112110101123 is an equidigital number, since it uses as much as digits as its factorization.

111112110101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43083410916.

The product of its (nonzero) digits is 12, while the sum is 17.

Adding to 111112110101123 its reverse (321101011211111), we get a palindrome (432213121312234).

The spelling of 111112110101123 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred ten million, one hundred one thousand, one hundred twenty-three".