204431002400023 has 4 divisors (see below), whose sum is σ = 233635431314320. Its totient is φ = 175226573485728.

The previous prime is 204431002399991. The next prime is 204431002400029. The reversal of 204431002400023 is 320004200134402.

It is a happy number.

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 204431002400023 - 2⁵ = 204431002399991 is a prime.

It is a super-2 number, since 2×204431002400023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204431002400029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14602214457138 + ... + 14602214457151.

It is an arithmetic number, because the mean of its divisors is an integer number (58408857828580).

Almost surely, 2^{204431002400023} is an apocalyptic number.

204431002400023 is a deficient number, since it is larger than the sum of its proper divisors (29204428914297).

204431002400023 is an equidigital number, since it uses as much as digits as its factorization.

204431002400023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29204428914296.

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

Adding to 204431002400023 its reverse (320004200134402), we get a palindrome (524435202534425).

The spelling of 204431002400023 in words is "two hundred four trillion, four hundred thirty-one billion, two million, four hundred thousand, twenty-three".