1323434343232 has 56 divisors (see below), whose sum is σ = 2718438733800. Its totient is φ = 638501799936.

The previous prime is 1323434343169. The next prime is 1323434343239. The reversal of 1323434343232 is 2323434343231.

It can be written as a sum of positive squares in 4 ways, for example, as 661710663936 + 661723679296 = 813456^2 + 813464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1323434343191 and 1323434343200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323434343239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2772694 + ... + 3214762.

Almost surely, 2^{1323434343232} 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 1323434343232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359219366900).

1323434343232 is an abundant number, since it is smaller than the sum of its proper divisors (1395004390568).

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

1323434343232 is a wasteful number, since it uses less digits than its factorization.

1323434343232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443723 (or 443713 counting only the distinct ones).

The product of its digits is 373248, while the sum is 37.

Adding to 1323434343232 its reverse (2323434343231), we get a palindrome (3646868686463).

Subtracting 1323434343232 from its reverse (2323434343231), we obtain a palindrome (999999999999).

It can be divided in two parts, 13234343432 and 32, that multiplied together give a square (423498989824 = 650768²).

The spelling of 1323434343232 in words is "one trillion, three hundred twenty-three billion, four hundred thirty-four million, three hundred forty-three thousand, two hundred thirty-two".