1320123401444 has 24 divisors (see below), whose sum is σ = 2552463664128. Its totient is φ = 594224343680.

The previous prime is 1320123401431. The next prime is 1320123401453. The reversal of 1320123401444 is 4441043210231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422032772 + ... + 422035899.

It is an arithmetic number, because the mean of its divisors is an integer number (106352652672).

Almost surely, 2^{1320123401444} is an apocalyptic number.

It is an amenable number.

1320123401444 is a deficient number, since it is larger than the sum of its proper divisors (1232340262684).

1320123401444 is a wasteful number, since it uses less digits than its factorization.

1320123401444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844068715 (or 844068713 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1320123401444 its reverse (4441043210231), we get a palindrome (5761166611675).

The spelling of 1320123401444 in words is "one trillion, three hundred twenty billion, one hundred twenty-three million, four hundred one thousand, four hundred forty-four".