203400404300 has 36 divisors (see below), whose sum is σ = 441433058976. Its totient is φ = 81350174400.

The previous prime is 203400404293. The next prime is 203400404309. The reversal of 203400404300 is 3404004302.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (203400404309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722474 + ... + 963726.

It is an arithmetic number, because the mean of its divisors is an integer number (12262029416).

Almost surely, 2^203400404300 is an apocalyptic number.

203400404300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203400404300 is an abundant number, since it is smaller than the sum of its proper divisors (238032654676).

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

203400404300 is a wasteful number, since it uses less digits than its factorization.

203400404300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249698 (or 249691 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 203400404300 its reverse (3404004302), we get a palindrome (206804408602).

The spelling of 203400404300 in words is "two hundred three billion, four hundred million, four hundred four thousand, three hundred".