1321343110432 has 24 divisors (see below), whose sum is σ = 2601431910000. Its totient is φ = 660661990464.

The previous prime is 1321343110429. The next prime is 1321343110481. The reversal of 1321343110432 is 2340113431231.

It is a super-2 number, since 2×1321343110432² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1321343110432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291319 + ... + 2809417.

It is an arithmetic number, because the mean of its divisors is an integer number (108392996250).

Almost surely, 2^{1321343110432} is an apocalyptic number.

It is an amenable number.

1321343110432 is a deficient number, since it is larger than the sum of its proper divisors (1280088799568).

1321343110432 is an equidigital number, since it uses as much as digits as its factorization.

1321343110432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597808 (or 597800 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1321343110432 its reverse (2340113431231), we get a palindrome (3661456541663).

The spelling of 1321343110432 in words is "one trillion, three hundred twenty-one billion, three hundred forty-three million, one hundred ten thousand, four hundred thirty-two".