111412123 has 4 divisors (see below), whose sum is σ = 111856248. Its totient is φ = 110968000.

The previous prime is 111412121. The next prime is 111412157. The reversal of 111412123 is 321214111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321214111 = 10037 ⋅32003.

It is a cyclic number.

It is not a de Polignac number, because 111412123 - 2¹ = 111412121 is a prime.

It is a super-2 number, since 2×111412123² = 24825322302734258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111412097 and 111412106.

It is not an unprimeable number, because it can be changed into a prime (111412121) 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, 221686 + ... + 222187.

It is an arithmetic number, because the mean of its divisors is an integer number (27964062).

Almost surely, 2^111412123 is an apocalyptic number.

111412123 is a deficient number, since it is larger than the sum of its proper divisors (444125).

111412123 is an equidigital number, since it uses as much as digits as its factorization.

111412123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444124.

The product of its digits is 48, while the sum is 16.

The square root of 111412123 is about 10555.1941242215. The cubic root of 111412123 is about 481.1835995868.

Adding to 111412123 its reverse (321214111), we get a palindrome (432626234).

The spelling of 111412123 in words is "one hundred eleven million, four hundred twelve thousand, one hundred twenty-three".