1323210101100 has 576 divisors, whose sum is σ = 4390818969600. Its totient is φ = 305565696000.

The previous prime is 1323210101071. The next prime is 1323210101111. The reversal of 1323210101100 is 11010123231.

It is a happy number.

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 1323210101100.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1076655286 + ... + 1076656514.

It is an arithmetic number, because the mean of its divisors is an integer number (7622949600).

Almost surely, 2^{1323210101100} is an apocalyptic number.

1323210101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323210101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2195409484800).

1323210101100 is an abundant number, since it is smaller than the sum of its proper divisors (3067608868500).

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

1323210101100 is a wasteful number, since it uses less digits than its factorization.

1323210101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1323210101100 its reverse (11010123231), we get a palindrome (1334220224331).

The spelling of 1323210101100 in words is "one trillion, three hundred twenty-three billion, two hundred ten million, one hundred one thousand, one hundred".