220109023 has 4 divisors (see below), whose sum is σ = 220591120. Its totient is φ = 219626928.

The previous prime is 220108969. The next prime is 220109027. The reversal of 220109023 is 320901022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220109023 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 (220109027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 240363 + ... + 241276.

It is an arithmetic number, because the mean of its divisors is an integer number (55147780).

Almost surely, 2^220109023 is an apocalyptic number.

220109023 is a deficient number, since it is larger than the sum of its proper divisors (482097).

220109023 is an equidigital number, since it uses as much as digits as its factorization.

220109023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482096.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 220109023 is about 14836.0716835691. The cubic root of 220109023 is about 603.7807770933.

The spelling of 220109023 in words is "two hundred twenty million, one hundred nine thousand, twenty-three".