203230100 has 18 divisors (see below), whose sum is σ = 441009534. Its totient is φ = 81292000.

The previous prime is 203230091. The next prime is 203230123. The reversal of 203230100 is 1032302.

It can be written as a sum of positive squares in 3 ways, for example, as 14002564 + 189227536 = 3742^2 + 13756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1016051 + ... + 1016250.

Almost surely, 2^203230100 is an apocalyptic number.

203230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203230100 is an abundant number, since it is smaller than the sum of its proper divisors (237779434).

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

203230100 is a wasteful number, since it uses less digits than its factorization.

203230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032315 (or 2032308 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 203230100 is about 14255.8794888285. The cubic root of 203230100 is about 587.9350391777.

Adding to 203230100 its reverse (1032302), we get a palindrome (204262402).

The spelling of 203230100 in words is "two hundred three million, two hundred thirty thousand, one hundred".