203042423100 has 72 divisors (see below), whose sum is σ = 640875731328. Its totient is φ = 49222404800.

The previous prime is 203042423063. The next prime is 203042423147. The reversal of 203042423100 is 1324240302.

It is a super-2 number, since 2×203042423100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 30760704 + ... + 30767303.

It is an arithmetic number, because the mean of its divisors is an integer number (8901051824).

Almost surely, 2^203042423100 is an apocalyptic number.

203042423100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203042423100 is an abundant number, since it is smaller than the sum of its proper divisors (437833308228).

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

203042423100 is a wasteful number, since it uses less digits than its factorization.

203042423100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61528035 (or 61528028 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 203042423100 its reverse (1324240302), we get a palindrome (204366663402).

The spelling of 203042423100 in words is "two hundred three billion, forty-two million, four hundred twenty-three thousand, one hundred".