203320100112 has 160 divisors (see below), whose sum is σ = 550305778176. Its totient is φ = 64624435200.

The previous prime is 203320100107. The next prime is 203320100129. The reversal of 203320100112 is 211001023302.

It is a junction number, because it is equal to n+sod(n) for n = 203320100091 and 203320100100.

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 31 ways as a sum of consecutive naturals, for example, 28262788 + ... + 28269980.

Almost surely, 2^203320100112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203320100112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275152889088).

203320100112 is an abundant number, since it is smaller than the sum of its proper divisors (346985678064).

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

203320100112 is a wasteful number, since it uses less digits than its factorization.

203320100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569 (or 7563 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 203320100112 its reverse (211001023302), we get a palindrome (414321123414).

The spelling of 203320100112 in words is "two hundred three billion, three hundred twenty million, one hundred thousand, one hundred twelve".