1320433013420 has 24 divisors (see below), whose sum is σ = 2773076082000. Its totient is φ = 528141442752.

The previous prime is 1320433013413. The next prime is 1320433013477. The reversal of 1320433013420 is 243103340231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320433013420.

It is an unprimeable number.

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, 1642835 + ... + 2310794.

It is an arithmetic number, because the mean of its divisors is an integer number (115544836750).

Almost surely, 2^{1320433013420} is an apocalyptic number.

1320433013420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320433013420 is an abundant number, since it is smaller than the sum of its proper divisors (1452643068580).

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

1320433013420 is a wasteful number, since it uses less digits than its factorization.

1320433013420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970337 (or 3970335 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 1320433013420 its reverse (243103340231), we get a palindrome (1563536353651).

The spelling of 1320433013420 in words is "one trillion, three hundred twenty billion, four hundred thirty-three million, thirteen thousand, four hundred twenty".