1320513314432 has 32 divisors (see below), whose sum is σ = 2833072438980. Its totient is φ = 609467682816.

The previous prime is 1320513314423. The next prime is 1320513314489. The reversal of 1320513314432 is 2344133150231.

It can be written as a sum of positive squares in 2 ways, for example, as 1131023742016 + 189489572416 = 1063496^2 + 435304^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396787193 + ... + 396790520.

Almost surely, 2^{1320513314432} is an apocalyptic number.

It is an amenable number.

1320513314432 is an abundant number, since it is smaller than the sum of its proper divisors (1512559124548).

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

1320513314432 is an equidigital number, since it uses as much as digits as its factorization.

1320513314432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793577740 (or 793577728 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 1320513314432 its reverse (2344133150231), we get a palindrome (3664646464663).

The spelling of 1320513314432 in words is "one trillion, three hundred twenty billion, five hundred thirteen million, three hundred fourteen thousand, four hundred thirty-two".