1320031530443 has 2 divisors, whose sum is σ = 1320031530444. Its totient is φ = 1320031530442.

The previous prime is 1320031530439. The next prime is 1320031530479. The reversal of 1320031530443 is 3440351300231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320031530443 - 2² = 1320031530439 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320031580443) by changing a digit.

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 as a sum of consecutive naturals, namely, 660015765221 + 660015765222.

It is an arithmetic number, because the mean of its divisors is an integer number (660015765222).

Almost surely, 2^{1320031530443} is an apocalyptic number.

1320031530443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320031530443 is an equidigital number, since it uses as much as digits as its factorization.

1320031530443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 1320031530443 its reverse (3440351300231), we get a palindrome (4760382830674).

The spelling of 1320031530443 in words is "one trillion, three hundred twenty billion, thirty-one million, five hundred thirty thousand, four hundred forty-three".