1320242021144 has 32 divisors (see below), whose sum is σ = 2560890589200. Its totient is φ = 637339221120.

The previous prime is 1320242021123. The next prime is 1320242021149. The reversal of 1320242021144 is 4411202420231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320242021149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10624379 + ... + 10747925.

Almost surely, 2^{1320242021144} is an apocalyptic number.

It is an amenable number.

1320242021144 is a deficient number, since it is larger than the sum of its proper divisors (1240648568056).

1320242021144 is a wasteful number, since it uses less digits than its factorization.

1320242021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169643 (or 169639 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1320242021144 its reverse (4411202420231), we get a palindrome (5731444441375).

The spelling of 1320242021144 in words is "one trillion, three hundred twenty billion, two hundred forty-two million, twenty-one thousand, one hundred forty-four".