1321232444324 has 24 divisors (see below), whose sum is σ = 2490779822328. Its totient is φ = 609612284160.

The previous prime is 1321232444291. The next prime is 1321232444327. The reversal of 1321232444324 is 4234442321231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 305994836224 + 1015237608100 = 553168^2 + 1007590^2 .

It is not an unprimeable number, because it can be changed into a prime (1321232444327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731207 + ... + 4069934.

It is an arithmetic number, because the mean of its divisors is an integer number (103782492597).

Almost surely, 2^{1321232444324} is an apocalyptic number.

It is an amenable number.

1321232444324 is a deficient number, since it is larger than the sum of its proper divisors (1169547378004).

1321232444324 is a wasteful number, since it uses less digits than its factorization.

1321232444324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7804415 (or 7804413 counting only the distinct ones).

The product of its digits is 110592, while the sum is 35.

Adding to 1321232444324 its reverse (4234442321231), we get a palindrome (5555674765555).

The spelling of 1321232444324 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-two million, four hundred forty-four thousand, three hundred twenty-four".