203102103100 has 36 divisors (see below), whose sum is σ = 474633994744. Its totient is φ = 74991545280.

The previous prime is 203102103097. The next prime is 203102103101. The reversal of 203102103100 is 1301201302.

203102103100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203102103100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203102103101) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 78114894 + ... + 78117493.

Almost surely, 2^203102103100 is an apocalyptic number.

203102103100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203102103100 is an abundant number, since it is smaller than the sum of its proper divisors (271531891644).

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

203102103100 is a wasteful number, since it uses less digits than its factorization.

203102103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156232414 (or 156232407 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 203102103100 its reverse (1301201302), we get a palindrome (204403304402).

The spelling of 203102103100 in words is "two hundred three billion, one hundred two million, one hundred three thousand, one hundred".