100203312112 has 40 divisors (see below), whose sum is σ = 207296267904. Its totient is φ = 46808819904.

The previous prime is 100203312091. The next prime is 100203312119. The reversal of 100203312112 is 211213302001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203312119) 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 7 ways as a sum of consecutive naturals, for example, 3150358 + ... + 3182005.

Almost surely, 2^100203312112 is an apocalyptic number.

It is an amenable number.

100203312112 is an abundant number, since it is smaller than the sum of its proper divisors (107092955792).

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

100203312112 is a wasteful number, since it uses less digits than its factorization.

100203312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332437 (or 6332431 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100203312112 its reverse (211213302001), we get a palindrome (311416614113).

The spelling of 100203312112 in words is "one hundred billion, two hundred three million, three hundred twelve thousand, one hundred twelve".