1323224011452 has 192 divisors, whose sum is σ = 3899212369920. Its totient is φ = 340513603584.

The previous prime is 1323224011441. The next prime is 1323224011453. The reversal of 1323224011452 is 2541104223231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323224011453) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 4538173 + ... + 4820939.

It is an arithmetic number, because the mean of its divisors is an integer number (20308397760).

Almost surely, 2^{1323224011452} is an apocalyptic number.

1323224011452 is a gapful number since it is divisible by the number (12) 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 1323224011452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949606184960).

1323224011452 is an abundant number, since it is smaller than the sum of its proper divisors (2575988358468).

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

1323224011452 is a wasteful number, since it uses less digits than its factorization.

1323224011452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282940 (or 282938 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1323224011452 its reverse (2541104223231), we get a palindrome (3864328234683).

The spelling of 1323224011452 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-four million, eleven thousand, four hundred fifty-two".