1217142713443 has 8 divisors (see below), whose sum is σ = 1217494278000. Its totient is φ = 1216791214848.

The previous prime is 1217142713441. The next prime is 1217142713497. The reversal of 1217142713443 is 3443172417121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1217142713443 - 2¹ = 1217142713441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1217142713396 and 1217142713405.

It is not an unprimeable number, because it can be changed into a prime (1217142713441) 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, 82797108 + ... + 82811806.

It is an arithmetic number, because the mean of its divisors is an integer number (152186784750).

Almost surely, 2^{1217142713443} is an apocalyptic number.

1217142713443 is a deficient number, since it is larger than the sum of its proper divisors (351564557).

1217142713443 is a wasteful number, since it uses less digits than its factorization.

1217142713443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32981.

The product of its digits is 112896, while the sum is 40.

The spelling of 1217142713443 in words is "one trillion, two hundred seventeen billion, one hundred forty-two million, seven hundred thirteen thousand, four hundred forty-three".