203430202405 has 16 divisors (see below), whose sum is σ = 245185320960. Its totient is φ = 162031709952.

The previous prime is 203430202403. The next prime is 203430202439. The reversal of 203430202405 is 504202034302.

203430202405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 203430202405 - 2¹ = 203430202403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203430202405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203430202403) 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 15 ways as a sum of consecutive naturals, for example, 7595197 + ... + 7621933.

It is an arithmetic number, because the mean of its divisors is an integer number (15324082560).

Almost surely, 2^203430202405 is an apocalyptic number.

It is an amenable number.

203430202405 is a deficient number, since it is larger than the sum of its proper divisors (41755118555).

203430202405 is a wasteful number, since it uses less digits than its factorization.

203430202405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33348.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 203430202405 its reverse (504202034302), we get a palindrome (707632236707).

The spelling of 203430202405 in words is "two hundred three billion, four hundred thirty million, two hundred two thousand, four hundred five".