100203323100 has 72 divisors (see below), whose sum is σ = 290630825520. Its totient is φ = 26655521280.

The previous prime is 100203323089. The next prime is 100203323107. The reversal of 100203323100 is 1323302001.

It is a super-2 number, since 2×100203323100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100203323100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203323107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285627 + ... + 531026.

Almost surely, 2^100203323100 is an apocalyptic number.

100203323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100203323100 is an abundant number, since it is smaller than the sum of its proper divisors (190427502420).

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

100203323100 is a wasteful number, since it uses less digits than its factorization.

100203323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817079 (or 817072 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 100203323100 its reverse (1323302001), we get a palindrome (101526625101).

The spelling of 100203323100 in words is "one hundred billion, two hundred three million, three hundred twenty-three thousand, one hundred".