203112030100 has 36 divisors (see below), whose sum is σ = 503717836384. Its totient is φ = 69638410080.

The previous prime is 203112030059. The next prime is 203112030127. The reversal of 203112030100 is 1030211302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145079322 + ... + 145080721.

Almost surely, 2^203112030100 is an apocalyptic number.

203112030100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203112030100 is an abundant number, since it is smaller than the sum of its proper divisors (300605806284).

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

203112030100 is a wasteful number, since it uses less digits than its factorization.

203112030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290160064 (or 290160057 counting only the distinct ones).

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

Adding to 203112030100 its reverse (1030211302), we get a palindrome (204142241402).

The spelling of 203112030100 in words is "two hundred three billion, one hundred twelve million, thirty thousand, one hundred".