111820026 has 8 divisors (see below), whose sum is σ = 223640064. Its totient is φ = 37273340.

The previous prime is 111820021. The next prime is 111820039. The reversal of 111820026 is 620028111.

It is a sphenic number, since it is the product of 3 distinct primes.

111820026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 111819984 and 111820011.

It is not an unprimeable number, because it can be changed into a prime (111820021) 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, 9318330 + ... + 9318341.

It is an arithmetic number, because the mean of its divisors is an integer number (27955008).

Almost surely, 2^111820026 is an apocalyptic number.

111820026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111820026 is a wasteful number, since it uses less digits than its factorization.

111820026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636676.

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

The square root of 111820026 is about 10574.4988533736. The cubic root of 111820026 is about 481.7701221857.

Adding to 111820026 its reverse (620028111), we get a palindrome (731848137).

The spelling of 111820026 in words is "one hundred eleven million, eight hundred twenty thousand, twenty-six".