204201020023 has 32 divisors (see below), whose sum is σ = 274423403520. Its totient is φ = 146743176960.

The previous prime is 204201019961. The next prime is 204201020059. The reversal of 204201020023 is 320020102402.

It is a cyclic number.

It is not a de Polignac number, because 204201020023 - 2²¹ = 204198922871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204201019979 and 204201020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204201026023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1005118 + ... + 1191076.

It is an arithmetic number, because the mean of its divisors is an integer number (8575731360).

Almost surely, 2^204201020023 is an apocalyptic number.

204201020023 is a deficient number, since it is larger than the sum of its proper divisors (70222383497).

204201020023 is a wasteful number, since it uses less digits than its factorization.

204201020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187087.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 204201020023 its reverse (320020102402), we get a palindrome (524221122425).

The spelling of 204201020023 in words is "two hundred four billion, two hundred one million, twenty thousand, twenty-three".