1323220323432 has 64 divisors (see below), whose sum is σ = 3780732297600. Its totient is φ = 378052669440.

The previous prime is 1323220323427. The next prime is 1323220323533. The reversal of 1323220323432 is 2343230223231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323220323432.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7839544 + ... + 8006552.

It is an arithmetic number, because the mean of its divisors is an integer number (59073942150).

Almost surely, 2^{1323220323432} is an apocalyptic number.

1323220323432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323220323432 is an abundant number, since it is smaller than the sum of its proper divisors (2457511974168).

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

1323220323432 is a wasteful number, since it uses less digits than its factorization.

1323220323432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214186 (or 214182 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 1323220323432 its reverse (2343230223231), we get a palindrome (3666450546663).

The spelling of 1323220323432 in words is "one trillion, three hundred twenty-three billion, two hundred twenty million, three hundred twenty-three thousand, four hundred thirty-two".