20221020230023 has 4 divisors (see below), whose sum is σ = 20221046974480. Its totient is φ = 20220993485568.

The previous prime is 20221020230003. The next prime is 20221020230057. The reversal of 20221020230023 is 32003202012202.

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-20221020230023 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 (20221020230003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12204090 + ... + 13761607.

It is an arithmetic number, because the mean of its divisors is an integer number (5055261743620).

Almost surely, 2^{20221020230023} is an apocalyptic number.

20221020230023 is a deficient number, since it is larger than the sum of its proper divisors (26744457).

20221020230023 is an equidigital number, since it uses as much as digits as its factorization.

20221020230023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26744456.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20221020230023 its reverse (32003202012202), we get a palindrome (52224222242225).

The spelling of 20221020230023 in words is "twenty trillion, two hundred twenty-one billion, twenty million, two hundred thirty thousand, twenty-three".