203404411420 has 48 divisors (see below), whose sum is σ = 489577536000. Its totient is φ = 69537662784.

The previous prime is 203404411411. The next prime is 203404411451. The reversal of 203404411420 is 24114404302.

203404411420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 2044920 + ... + 2142079.

It is an arithmetic number, because the mean of its divisors is an integer number (10199532000).

Almost surely, 2^203404411420 is an apocalyptic number.

203404411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203404411420 is an abundant number, since it is smaller than the sum of its proper divisors (286173124580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203404411420 is a wasteful number, since it uses less digits than its factorization.

203404411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187362 (or 4187360 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 203404411420 its reverse (24114404302), we get a palindrome (227518815722).

The spelling of 203404411420 in words is "two hundred three billion, four hundred four million, four hundred eleven thousand, four hundred twenty".