102203100 has 72 divisors (see below), whose sum is σ = 328572720. Its totient is φ = 27253440.

The previous prime is 102203069. The next prime is 102203111. The reversal of 102203100 is 1302201.

It is a happy number.

It is a super-2 number, since 2×102203100² = 20890947299220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 16227 + ... + 21626.

It is an arithmetic number, because the mean of its divisors is an integer number (4563510).

Almost surely, 2^102203100 is an apocalyptic number.

102203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102203100 is an abundant number, since it is smaller than the sum of its proper divisors (226369620).

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

102203100 is a wasteful number, since it uses less digits than its factorization.

102203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37876 (or 37863 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 102203100 is about 10109.5548863439. The cubic root of 102203100 is about 467.5427815997.

Adding to 102203100 its reverse (1302201), we get a palindrome (103505301).

The spelling of 102203100 in words is "one hundred two million, two hundred three thousand, one hundred".