204240431211043 has 4 divisors (see below), whose sum is σ = 205799518472328. Its totient is φ = 202681343949760.

The previous prime is 204240431210941. The next prime is 204240431211071. The reversal of 204240431211043 is 340112134042402.

It is a happy number.

204240431211043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204240431211043 - 2³³ = 204231841276451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204240431210996 and 204240431211014.

It is not an unprimeable number, because it can be changed into a prime (204240431211083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779543630446 + ... + 779543630707.

It is an arithmetic number, because the mean of its divisors is an integer number (51449879618082).

Almost surely, 2^{204240431211043} is an apocalyptic number.

204240431211043 is a deficient number, since it is larger than the sum of its proper divisors (1559087261285).

204240431211043 is a wasteful number, since it uses less digits than its factorization.

204240431211043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559087261284.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 204240431211043 its reverse (340112134042402), we get a palindrome (544352565253445).

The spelling of 204240431211043 in words is "two hundred four trillion, two hundred forty billion, four hundred thirty-one million, two hundred eleven thousand, forty-three".