1323023221100 has 54 divisors (see below), whose sum is σ = 3339688629060. Its totient is φ = 453607959840.

The previous prime is 1323023221081. The next prime is 1323023221123. The reversal of 1323023221100 is 11223203231.

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 17 ways as a sum of consecutive naturals, for example, 134997470 + ... + 135007269.

Almost surely, 2^{1323023221100} is an apocalyptic number.

1323023221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323023221100 is an abundant number, since it is smaller than the sum of its proper divisors (2016665407960).

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

1323023221100 is a wasteful number, since it uses less digits than its factorization.

1323023221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270004767 (or 270004753 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1323023221100 its reverse (11223203231), we get a palindrome (1334246424331).

The spelling of 1323023221100 in words is "one trillion, three hundred twenty-three billion, twenty-three million, two hundred twenty-one thousand, one hundred".