1223303100 has 36 divisors (see below), whose sum is σ = 3539424504. Its totient is φ = 326214080.

The previous prime is 1223303099. The next prime is 1223303113. The reversal of 1223303100 is 13033221.

It is a super-2 number, since 2×1223303100² = 2992940948939220000, which 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 1223303100.

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 11 ways as a sum of consecutive naturals, for example, 2038539 + ... + 2039138.

Almost surely, 2^1223303100 is an apocalyptic number.

1223303100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223303100 is an abundant number, since it is smaller than the sum of its proper divisors (2316121404).

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

1223303100 is a wasteful number, since it uses less digits than its factorization.

1223303100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077694 (or 4077687 counting only the distinct ones).

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

The square root of 1223303100 is about 34975.7501706540. The cubic root of 1223303100 is about 1069.4931946418.

Adding to 1223303100 its reverse (13033221), we get a palindrome (1236336321).

The spelling of 1223303100 in words is "one billion, two hundred twenty-three million, three hundred three thousand, one hundred".