108111243 has 4 divisors (see below), whose sum is σ = 144148328. Its totient is φ = 72074160.

The previous prime is 108111239. The next prime is 108111251. The reversal of 108111243 is 342111801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342111801 = 3 ⋅114037267.

It is not a de Polignac number, because 108111243 - 2² = 108111239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108111343) 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, 18018538 + ... + 18018543.

It is an arithmetic number, because the mean of its divisors is an integer number (36037082).

Almost surely, 2^108111243 is an apocalyptic number.

108111243 is a deficient number, since it is larger than the sum of its proper divisors (36037085).

108111243 is an equidigital number, since it uses as much as digits as its factorization.

108111243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36037084.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 108111243 is about 10397.6556492317. The cubic root of 108111243 is about 476.3837662015.

The spelling of 108111243 in words is "one hundred eight million, one hundred eleven thousand, two hundred forty-three".