110842021 has 4 divisors (see below), whose sum is σ = 111004992. Its totient is φ = 110679052.

The previous prime is 110842009. The next prime is 110842073. The reversal of 110842021 is 120248011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120248011 = 13 ⋅9249847.

It is a cyclic number.

It is not a de Polignac number, because 110842021 - 2¹⁵ = 110809253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110842021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110842421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80461 + ... + 81826.

It is an arithmetic number, because the mean of its divisors is an integer number (27751248).

Almost surely, 2^110842021 is an apocalyptic number.

It is an amenable number.

110842021 is a deficient number, since it is larger than the sum of its proper divisors (162971).

110842021 is an equidigital number, since it uses as much as digits as its factorization.

110842021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162970.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 110842021 is about 10528.1537317803. The cubic root of 110842021 is about 480.3614479521.

The spelling of 110842021 in words is "one hundred ten million, eight hundred forty-two thousand, twenty-one".