203402404100 has 72 divisors (see below), whose sum is σ = 534110814720. Its totient is φ = 65635729920.

The previous prime is 203402404039. The next prime is 203402404157. The reversal of 203402404100 is 1404204302.

203402404100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 23 ways as a sum of consecutive naturals, for example, 8534420 + ... + 8558219.

It is an arithmetic number, because the mean of its divisors is an integer number (7418205760).

Almost surely, 2^203402404100 is an apocalyptic number.

203402404100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203402404100 is an abundant number, since it is smaller than the sum of its proper divisors (330708410620).

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

203402404100 is a wasteful number, since it uses less digits than its factorization.

203402404100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17092677 (or 17092670 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 203402404100 its reverse (1404204302), we get a palindrome (204806608402).

The spelling of 203402404100 in words is "two hundred three billion, four hundred two million, four hundred four thousand, one hundred".