1320401030444 has 48 divisors (see below), whose sum is σ = 2489302569600. Its totient is φ = 610804768896.

The previous prime is 1320401030441. The next prime is 1320401030447. The reversal of 1320401030444 is 4440301040231.

It is an interprime number because it is at equal distance from previous prime (1320401030441) and next prime (1320401030447).

It is not an unprimeable number, because it can be changed into a prime (1320401030441) 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 in 15 ways as a sum of consecutive naturals, for example, 21436739 + ... + 21498245.

It is an arithmetic number, because the mean of its divisors is an integer number (51860470200).

Almost surely, 2^{1320401030444} is an apocalyptic number.

It is an amenable number.

1320401030444 is a deficient number, since it is larger than the sum of its proper divisors (1168901539156).

1320401030444 is a wasteful number, since it uses less digits than its factorization.

1320401030444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68142 (or 68140 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1320401030444 its reverse (4440301040231), we get a palindrome (5760702070675).

The spelling of 1320401030444 in words is "one trillion, three hundred twenty billion, four hundred one million, thirty thousand, four hundred forty-four".