204212404043 has 16 divisors (see below), whose sum is σ = 208140403584. Its totient is φ = 200311911360.

The previous prime is 204212404037. The next prime is 204212404061. The reversal of 204212404043 is 340404212402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 204212404043 - 2¹² = 204212399947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204212404013) 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, 18291383 + ... + 18302543.

It is an arithmetic number, because the mean of its divisors is an integer number (13008775224).

Almost surely, 2^204212404043 is an apocalyptic number.

204212404043 is a deficient number, since it is larger than the sum of its proper divisors (3927999541).

204212404043 is a wasteful number, since it uses less digits than its factorization.

204212404043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12362.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 204212404043 its reverse (340404212402), we get a palindrome (544616616445).

The spelling of 204212404043 in words is "two hundred four billion, two hundred twelve million, four hundred four thousand, forty-three".