111448111 has 4 divisors (see below), whose sum is σ = 111735000. Its totient is φ = 111161224.

The previous prime is 111448079. The next prime is 111448121. The reversal of 111448111 is 111844111.

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 111448111 - 2⁵ = 111448079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111448121) 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, 142861 + ... + 143638.

It is an arithmetic number, because the mean of its divisors is an integer number (27933750).

Almost surely, 2^111448111 is an apocalyptic number.

111448111 is a deficient number, since it is larger than the sum of its proper divisors (286889).

111448111 is an equidigital number, since it uses as much as digits as its factorization.

111448111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286888.

The product of its digits is 128, while the sum is 22.

The square root of 111448111 is about 10556.8987396868. The cubic root of 111448111 is about 481.2354041562.

The spelling of 111448111 in words is "one hundred eleven million, four hundred forty-eight thousand, one hundred eleven".