1320244513143 has 32 divisors (see below), whose sum is σ = 1871337177600. Its totient is φ = 826361294976.

The previous prime is 1320244513123. The next prime is 1320244513151. The reversal of 1320244513143 is 3413154420231.

It is not a de Polignac number, because 1320244513143 - 2⁸ = 1320244512887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320244513123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5427318 + ... + 5665356.

It is an arithmetic number, because the mean of its divisors is an integer number (58479286800).

Almost surely, 2^{1320244513143} is an apocalyptic number.

1320244513143 is a deficient number, since it is larger than the sum of its proper divisors (551092664457).

1320244513143 is a wasteful number, since it uses less digits than its factorization.

1320244513143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239831.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1320244513143 its reverse (3413154420231), we get a palindrome (4733398933374).

The spelling of 1320244513143 in words is "one trillion, three hundred twenty billion, two hundred forty-four million, five hundred thirteen thousand, one hundred forty-three".