1331244240443 has 8 divisors (see below), whose sum is σ = 1451795083200. Its totient is φ = 1213285889088.

The previous prime is 1331244240433. The next prime is 1331244240451. The reversal of 1331244240443 is 3440424421331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331244240443 - 2⁶ = 1331244240379 is a prime.

It is a super-2 number, since 2×1331244240443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331244240433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648121778 + ... + 648123831.

It is an arithmetic number, because the mean of its divisors is an integer number (181474385400).

Almost surely, 2^{1331244240443} is an apocalyptic number.

1331244240443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1331244240443 is a deficient number, since it is larger than the sum of its proper divisors (120550842757).

1331244240443 is a wasteful number, since it uses less digits than its factorization.

1331244240443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296245701.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 1331244240443 its reverse (3440424421331), we get a palindrome (4771668661774).

The spelling of 1331244240443 in words is "one trillion, three hundred thirty-one billion, two hundred forty-four million, two hundred forty thousand, four hundred forty-three".