203442343100 has 72 divisors (see below), whose sum is σ = 443755483248. Its totient is φ = 80956339200.

The previous prime is 203442343057. The next prime is 203442343123. The reversal of 203442343100 is 1343244302.

It is a super-2 number, since 2×203442343100² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203442343100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27060542 + ... + 27068058.

Almost surely, 2^203442343100 is an apocalyptic number.

203442343100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203442343100 is an abundant number, since it is smaller than the sum of its proper divisors (240313140148).

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

203442343100 is a wasteful number, since it uses less digits than its factorization.

203442343100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8895 (or 8888 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 203442343100 its reverse (1343244302), we get a palindrome (204785587402).

The spelling of 203442343100 in words is "two hundred three billion, four hundred forty-two million, three hundred forty-three thousand, one hundred".