203102102100 has 72 divisors (see below), whose sum is σ = 601308215200. Its totient is φ = 52901009280.

The previous prime is 203102102059. The next prime is 203102102101. The reversal of 203102102100 is 1201201302.

203102102100 is digitally balanced in base 3, 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 (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203102102101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7859275 + ... + 7885074.

Almost surely, 2^203102102100 is an apocalyptic number.

203102102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203102102100 is an abundant number, since it is smaller than the sum of its proper divisors (398206113100).

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

203102102100 is a wasteful number, since it uses less digits than its factorization.

203102102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15744409 (or 15744402 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 203102102100 its reverse (1201201302), we get a palindrome (204303303402).

The spelling of 203102102100 in words is "two hundred three billion, one hundred two million, one hundred two thousand, one hundred".