111138223876 has 81 divisors (see below), whose sum is σ = 212854307463. Its totient is φ = 50766192720.

The previous prime is 111138223849. The next prime is 111138223901. The reversal of 111138223876 is 678322831111.

The square root of 111138223876 is 333374.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 392714431 + ... + 392714713.

Almost surely, 2^111138223876 is an apocalyptic number.

111138223876 is the 333374-th square number.

It is an amenable number.

111138223876 is a deficient number, since it is larger than the sum of its proper divisors (101716083587).

111138223876 is an equidigital number, since it uses as much as digits as its factorization.

111138223876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 335 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The spelling of 111138223876 in words is "one hundred eleven billion, one hundred thirty-eight million, two hundred twenty-three thousand, eight hundred seventy-six".