111401123 has 4 divisors (see below), whose sum is σ = 117264360. Its totient is φ = 105537888.

The previous prime is 111401113. The next prime is 111401131. The reversal of 111401123 is 321104111.

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 111401123 - 2²⁰ = 110352547 is a prime.

It is a super-2 number, since 2×111401123² = 24820420411322258, 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 = 111401098 and 111401107.

It is not an unprimeable number, because it can be changed into a prime (111401113) 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, 2931590 + ... + 2931627.

It is an arithmetic number, because the mean of its divisors is an integer number (29316090).

Almost surely, 2^111401123 is an apocalyptic number.

111401123 is a deficient number, since it is larger than the sum of its proper divisors (5863237).

111401123 is an equidigital number, since it uses as much as digits as its factorization.

111401123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863236.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111401123 is about 10554.6730408857. The cubic root of 111401123 is about 481.1677629086.

Adding to 111401123 its reverse (321104111), we get a palindrome (432505234).

The spelling of 111401123 in words is "one hundred eleven million, four hundred one thousand, one hundred twenty-three".