111010112123 has 4 divisors (see below), whose sum is σ = 111087580488. Its totient is φ = 110932643760.

The previous prime is 111010112107. The next prime is 111010112153. The reversal of 111010112123 is 321211010111.

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 111010112123 - 2⁴ = 111010112107 is a prime.

It is a super-2 number, since 2×111010112123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010112098 and 111010112107.

It is not an unprimeable number, because it can be changed into a prime (111010112153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38732033 + ... + 38734898.

It is an arithmetic number, because the mean of its divisors is an integer number (27771895122).

Almost surely, 2^111010112123 is an apocalyptic number.

111010112123 is a deficient number, since it is larger than the sum of its proper divisors (77468365).

111010112123 is an equidigital number, since it uses as much as digits as its factorization.

111010112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77468364.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111010112123 its reverse (321211010111), we get a palindrome (432221122234).

The spelling of 111010112123 in words is "one hundred eleven billion, ten million, one hundred twelve thousand, one hundred twenty-three".