204423323100 has 36 divisors (see below), whose sum is σ = 591464815704. Its totient is φ = 54512886080.

The previous prime is 204423323077. The next prime is 204423323101. The reversal of 204423323100 is 1323324402.

It is a super-2 number, since 2×204423323100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204423323101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340705239 + ... + 340705838.

It is an arithmetic number, because the mean of its divisors is an integer number (16429578214).

Almost surely, 2^204423323100 is an apocalyptic number.

204423323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204423323100 is an abundant number, since it is smaller than the sum of its proper divisors (387041492604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204423323100 is a wasteful number, since it uses less digits than its factorization.

204423323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681411094 (or 681411087 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 204423323100 its reverse (1323324402), we get a palindrome (205746647502).

The spelling of 204423323100 in words is "two hundred four billion, four hundred twenty-three million, three hundred twenty-three thousand, one hundred".