10203320100 has 144 divisors (see below), whose sum is σ = 31459736448. Its totient is φ = 2544322560.

The previous prime is 10203320041. The next prime is 10203320143. The reversal of 10203320100 is 102330201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 794329 + ... + 807071.

It is an arithmetic number, because the mean of its divisors is an integer number (218470392).

Almost surely, 2^10203320100 is an apocalyptic number.

10203320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10203320100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15729868224).

10203320100 is an abundant number, since it is smaller than the sum of its proper divisors (21256416348).

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

10203320100 is a wasteful number, since it uses less digits than its factorization.

10203320100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934 (or 12927 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 10203320100 its reverse (102330201), we get a palindrome (10305650301).

The spelling of 10203320100 in words is "ten billion, two hundred three million, three hundred twenty thousand, one hundred".