220423230143 has 4 divisors (see below), whose sum is σ = 220590345360. Its totient is φ = 220256114928.

The previous prime is 220423230101. The next prime is 220423230173. The reversal of 220423230143 is 341032324022.

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

It is a cyclic number.

It is not a de Polignac number, because 220423230143 - 2²² = 220419035839 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 (220423230173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83555630 + ... + 83558267.

It is an arithmetic number, because the mean of its divisors is an integer number (55147586340).

Almost surely, 2^220423230143 is an apocalyptic number.

220423230143 is a deficient number, since it is larger than the sum of its proper divisors (167115217).

220423230143 is a wasteful number, since it uses less digits than its factorization.

220423230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167115216.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 220423230143 its reverse (341032324022), we get a palindrome (561455554165).

The spelling of 220423230143 in words is "two hundred twenty billion, four hundred twenty-three million, two hundred thirty thousand, one hundred forty-three".