204115023 has 24 divisors (see below), whose sum is σ = 344792448. Its totient is φ = 113923152.

The previous prime is 204115013. The next prime is 204115027. The reversal of 204115023 is 320511402.

It is not a de Polignac number, because 204115023 - 2⁴ = 204115007 is a prime.

It is a super-2 number, since 2×204115023² = 83325885228581058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204114987 and 204115005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204115027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34965 + ... + 40382.

It is an arithmetic number, because the mean of its divisors is an integer number (14366352).

Almost surely, 2^204115023 is an apocalyptic number.

204115023 is a deficient number, since it is larger than the sum of its proper divisors (140677425).

204115023 is a wasteful number, since it uses less digits than its factorization.

204115023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75403 (or 75400 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204115023 is about 14286.8829000591. The cubic root of 204115023 is about 588.7871503462.

Adding to 204115023 its reverse (320511402), we get a palindrome (524626425).

The spelling of 204115023 in words is "two hundred four million, one hundred fifteen thousand, twenty-three".