1323113121100 has 36 divisors (see below), whose sum is σ = 2871222355008. Its totient is φ = 529232920000.

The previous prime is 1323113121061. The next prime is 1323113121101. The reversal of 1323113121100 is 11213113231.

It is not an unprimeable number, because it can be changed into a prime (1323113121101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5026770 + ... + 5283430.

It is an arithmetic number, because the mean of its divisors is an integer number (79756176528).

Almost surely, 2^{1323113121100} is an apocalyptic number.

1323113121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323113121100 is an abundant number, since it is smaller than the sum of its proper divisors (1548109233908).

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

1323113121100 is a wasteful number, since it uses less digits than its factorization.

1323113121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308226 (or 308219 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1323113121100 its reverse (11213113231), we get a palindrome (1334326234331).

The spelling of 1323113121100 in words is "one trillion, three hundred twenty-three billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred".