204123310401 has 32 divisors (see below), whose sum is σ = 290847656448. Its totient is φ = 126890086400.

The previous prime is 204123310373. The next prime is 204123310403. The reversal of 204123310401 is 104013321402.

It is a cyclic number.

It is not a de Polignac number, because 204123310401 - 2⁹ = 204123309889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204123310403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16862251 + ... + 16874351.

It is an arithmetic number, because the mean of its divisors is an integer number (9088989264).

Almost surely, 2^204123310401 is an apocalyptic number.

It is an amenable number.

204123310401 is a deficient number, since it is larger than the sum of its proper divisors (86724346047).

204123310401 is a wasteful number, since it uses less digits than its factorization.

204123310401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15161.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 204123310401 its reverse (104013321402), we get a palindrome (308136631803).

The spelling of 204123310401 in words is "two hundred four billion, one hundred twenty-three million, three hundred ten thousand, four hundred one".