1323431024020 has 48 divisors (see below), whose sum is σ = 3176988716160. Its totient is φ = 453640028544.

The previous prime is 1323431024011. The next prime is 1323431024021. The reversal of 1323431024020 is 204201343231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323431024021) 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 15 ways as a sum of consecutive naturals, for example, 529639 + ... + 1710958.

It is an arithmetic number, because the mean of its divisors is an integer number (66187264920).

Almost surely, 2^{1323431024020} is an apocalyptic number.

1323431024020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323431024020 is an abundant number, since it is smaller than the sum of its proper divisors (1853557692140).

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

1323431024020 is a wasteful number, since it uses less digits than its factorization.

1323431024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244832 (or 2244830 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1323431024020 its reverse (204201343231), we get a palindrome (1527632367251).

The spelling of 1323431024020 in words is "one trillion, three hundred twenty-three billion, four hundred thirty-one million, twenty-four thousand, twenty".