203345066100 has 144 divisors (see below), whose sum is σ = 675611758080. Its totient is φ = 46701244800.

The previous prime is 203345066083. The next prime is 203345066107. The reversal of 203345066100 is 1660543302.

203345066100 is digitally balanced in base 7, 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 (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203345066107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1558872 + ... + 1684271.

It is an arithmetic number, because the mean of its divisors is an integer number (4691748320).

Almost surely, 2^203345066100 is an apocalyptic number.

203345066100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203345066100 is an abundant number, since it is smaller than the sum of its proper divisors (472266691980).

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

203345066100 is a wasteful number, since it uses less digits than its factorization.

203345066100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243190 (or 3243183 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 203345066100 in words is "two hundred three billion, three hundred forty-five million, sixty-six thousand, one hundred".