202423043023 has 4 divisors (see below), whose sum is σ = 203006395080. Its totient is φ = 201839690968.

The previous prime is 202423043003. The next prime is 202423043029. The reversal of 202423043023 is 320340324202.

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 202423043023 - 2⁹ = 202423042511 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 (202423043029) 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, 291675508 + ... + 291676201.

It is an arithmetic number, because the mean of its divisors is an integer number (50751598770).

Almost surely, 2^202423043023 is an apocalyptic number.

202423043023 is a deficient number, since it is larger than the sum of its proper divisors (583352057).

202423043023 is an equidigital number, since it uses as much as digits as its factorization.

202423043023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583352056.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 202423043023 its reverse (320340324202), we get a palindrome (522763367225).

The spelling of 202423043023 in words is "two hundred two billion, four hundred twenty-three million, forty-three thousand, twenty-three".