204020235451 has 8 divisors (see below), whose sum is σ = 214968916800. Its totient is φ = 193092631560.

The previous prime is 204020235421. The next prime is 204020235467. The reversal of 204020235451 is 154532020402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204020235451 - 2¹³ = 204020227259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204020235421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5249485 + ... + 5288206.

It is an arithmetic number, because the mean of its divisors is an integer number (26871114600).

Almost surely, 2^204020235451 is an apocalyptic number.

204020235451 is a deficient number, since it is larger than the sum of its proper divisors (10948681349).

204020235451 is a wasteful number, since it uses less digits than its factorization.

204020235451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10538729.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 204020235451 its reverse (154532020402), we get a palindrome (358552255853).

The spelling of 204020235451 in words is "two hundred four billion, twenty million, two hundred thirty-five thousand, four hundred fifty-one".