1323203113100 has 72 divisors (see below), whose sum is σ = 3217041731568. Its totient is φ = 468160300800.

The previous prime is 1323203113073. The next prime is 1323203113117. The reversal of 1323203113100 is 13113023231.

It is a super-2 number, since 2×1323203113100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16214867 + ... + 16296266.

Almost surely, 2^{1323203113100} is an apocalyptic number.

1323203113100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323203113100 is an abundant number, since it is smaller than the sum of its proper divisors (1893838618468).

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

1323203113100 is a wasteful number, since it uses less digits than its factorization.

1323203113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32511195 (or 32511188 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1323203113100 its reverse (13113023231), we get a palindrome (1336316136331).

The spelling of 1323203113100 in words is "one trillion, three hundred twenty-three billion, two hundred three million, one hundred thirteen thousand, one hundred".