20841750223 has 4 divisors (see below), whose sum is σ = 23819143120. Its totient is φ = 17864357328.

The previous prime is 20841750197. The next prime is 20841750227. The reversal of 20841750223 is 32205714802.

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-20841750223 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 (20841750227) 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, 1488696438 + ... + 1488696451.

It is an arithmetic number, because the mean of its divisors is an integer number (5954785780).

Almost surely, 2^20841750223 is an apocalyptic number.

20841750223 is a deficient number, since it is larger than the sum of its proper divisors (2977392897).

20841750223 is an equidigital number, since it uses as much as digits as its factorization.

20841750223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977392896.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 20841750223 in words is "twenty billion, eight hundred forty-one million, seven hundred fifty thousand, two hundred twenty-three".