204434013321203 has 4 divisors (see below), whose sum is σ = 204434063423208. Its totient is φ = 204433963219200.

The previous prime is 204434013321149. The next prime is 204434013321281. The reversal of 204434013321203 is 302123310434402.

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 204434013321203 - 2⁴⁴ = 186841827276787 is a prime.

It is a super-2 number, since 2×204434013321203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204434013321203.

It is not an unprimeable number, because it can be changed into a prime (204434013521203) 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, 18329273 + ... + 27291578.

It is an arithmetic number, because the mean of its divisors is an integer number (51108515855802).

Almost surely, 2^{204434013321203} is an apocalyptic number.

204434013321203 is a deficient number, since it is larger than the sum of its proper divisors (50102005).

204434013321203 is an equidigital number, since it uses as much as digits as its factorization.

204434013321203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50102004.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 204434013321203 its reverse (302123310434402), we get a palindrome (506557323755605).

The spelling of 204434013321203 in words is "two hundred four trillion, four hundred thirty-four billion, thirteen million, three hundred twenty-one thousand, two hundred three".