202104430423 has 4 divisors (see below), whose sum is σ = 230976491920. Its totient is φ = 173232368928.

The previous prime is 202104430397. The next prime is 202104430441. The reversal of 202104430423 is 324034401202.

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-202104430423 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 (202104430123) 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, 14436030738 + ... + 14436030751.

It is an arithmetic number, because the mean of its divisors is an integer number (57744122980).

Almost surely, 2^202104430423 is an apocalyptic number.

202104430423 is a deficient number, since it is larger than the sum of its proper divisors (28872061497).

202104430423 is an equidigital number, since it uses as much as digits as its factorization.

202104430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28872061496.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 202104430423 its reverse (324034401202), we get a palindrome (526138831625).

The spelling of 202104430423 in words is "two hundred two billion, one hundred four million, four hundred thirty thousand, four hundred twenty-three".