20041243023 has 4 divisors (see below), whose sum is σ = 26721657368. Its totient is φ = 13360828680.

The previous prime is 20041243021. The next prime is 20041243031. The reversal of 20041243023 is 32034214002.

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

It is not a de Polignac number, because 20041243023 - 2¹ = 20041243021 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 (20041243021) 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, 3340207168 + ... + 3340207173.

It is an arithmetic number, because the mean of its divisors is an integer number (6680414342).

Almost surely, 2^20041243023 is an apocalyptic number.

20041243023 is a deficient number, since it is larger than the sum of its proper divisors (6680414345).

20041243023 is an equidigital number, since it uses as much as digits as its factorization.

20041243023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680414344.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20041243023 its reverse (32034214002), we get a palindrome (52075457025).

The spelling of 20041243023 in words is "twenty billion, forty-one million, two hundred forty-three thousand, twenty-three".