204221044023423 has 16 divisors (see below), whose sum is σ = 311305471028736. Its totient is φ = 116655927248160.

The previous prime is 204221044023401. The next prime is 204221044023611. The reversal of 204221044023423 is 324320440122402.

It is a happy number.

It is not a de Polignac number, because 204221044023423 - 2¹⁰ = 204221044022399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204221044023823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1742114736 + ... + 1742231957.

It is an arithmetic number, because the mean of its divisors is an integer number (19456591939296).

Almost surely, 2^{204221044023423} is an apocalyptic number.

204221044023423 is a deficient number, since it is larger than the sum of its proper divisors (107084427005313).

204221044023423 is a wasteful number, since it uses less digits than its factorization.

204221044023423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484349494.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 204221044023423 its reverse (324320440122402), we get a palindrome (528541484145825).

The spelling of 204221044023423 in words is "two hundred four trillion, two hundred twenty-one billion, forty-four million, twenty-three thousand, four hundred twenty-three".