204133023420 has 24 divisors (see below), whose sum is σ = 571572465744. Its totient is φ = 54435472896.

The previous prime is 204133023401. The next prime is 204133023433. The reversal of 204133023420 is 24320331402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701108469 + ... + 1701108588.

It is an arithmetic number, because the mean of its divisors is an integer number (23815519406).

Almost surely, 2^204133023420 is an apocalyptic number.

204133023420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204133023420 is an abundant number, since it is smaller than the sum of its proper divisors (367439442324).

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

204133023420 is a wasteful number, since it uses less digits than its factorization.

204133023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402217069 (or 3402217067 counting only the distinct ones).

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

Adding to 204133023420 its reverse (24320331402), we get a palindrome (228453354822).

The spelling of 204133023420 in words is "two hundred four billion, one hundred thirty-three million, twenty-three thousand, four hundred twenty".