204022011243 has 64 divisors (see below), whose sum is σ = 302036636160. Its totient is φ = 121914734592.

The previous prime is 204022011233. The next prime is 204022011251. The reversal of 204022011243 is 342110220402.

204022011243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204022011243 - 2⁸ = 204022010987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204022011233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122387896 + ... + 122389562.

It is an arithmetic number, because the mean of its divisors is an integer number (4719322440).

Almost surely, 2^204022011243 is an apocalyptic number.

204022011243 is a deficient number, since it is larger than the sum of its proper divisors (98014624917).

204022011243 is a wasteful number, since it uses less digits than its factorization.

204022011243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 204022011243 its reverse (342110220402), we get a palindrome (546132231645).

The spelling of 204022011243 in words is "two hundred four billion, twenty-two million, eleven thousand, two hundred forty-three".