1321324003424 has 24 divisors (see below), whose sum is σ = 2671663570128. Its totient is φ = 642806271360.

The previous prime is 1321324003423. The next prime is 1321324003429. The reversal of 1321324003424 is 4243004231231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321324003423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557990372 + ... + 557992739.

It is an arithmetic number, because the mean of its divisors is an integer number (111319315422).

Almost surely, 2^{1321324003424} is an apocalyptic number.

It is an amenable number.

1321324003424 is an abundant number, since it is smaller than the sum of its proper divisors (1350339566704).

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

1321324003424 is a wasteful number, since it uses less digits than its factorization.

1321324003424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115983158 (or 1115983150 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1321324003424 its reverse (4243004231231), we get a palindrome (5564328234655).

The spelling of 1321324003424 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-four million, three thousand, four hundred twenty-four".