1323043043552 has 48 divisors (see below), whose sum is σ = 2676482424000. Its totient is φ = 643319428608.

The previous prime is 1323043043489. The next prime is 1323043043563. The reversal of 1323043043552 is 2553403403231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087318 + ... + 2646314.

It is an arithmetic number, because the mean of its divisors is an integer number (55760050500).

Almost surely, 2^{1323043043552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323043043552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338241212000).

1323043043552 is an abundant number, since it is smaller than the sum of its proper divisors (1353439380448).

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

1323043043552 is a wasteful number, since it uses less digits than its factorization.

1323043043552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561043 (or 561035 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 1323043043552 its reverse (2553403403231), we get a palindrome (3876446446783).

The spelling of 1323043043552 in words is "one trillion, three hundred twenty-three billion, forty-three million, forty-three thousand, five hundred fifty-two".