204142023 has 24 divisors (see below), whose sum is σ = 311079600. Its totient is φ = 128646144.

The previous prime is 204142021. The next prime is 204142033. The reversal of 204142023 is 320241402.

It is not a de Polignac number, because 204142023 - 2¹ = 204142021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204141987 and 204142005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204142021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97633 + ... + 99701.

It is an arithmetic number, because the mean of its divisors is an integer number (12961650).

Almost surely, 2^204142023 is an apocalyptic number.

204142023 is a deficient number, since it is larger than the sum of its proper divisors (106937577).

204142023 is a wasteful number, since it uses less digits than its factorization.

204142023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 204142023 is about 14287.8277915154. The cubic root of 204142023 is about 588.8131104673.

Adding to 204142023 its reverse (320241402), we get a palindrome (524383425).

The spelling of 204142023 in words is "two hundred four million, one hundred forty-two thousand, twenty-three".