1020713742517 has 8 divisors (see below), whose sum is σ = 1166536136000. Its totient is φ = 874892885184.

The previous prime is 1020713742481. The next prime is 1020713742539. The reversal of 1020713742517 is 7152473170201.

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 1020713742517 - 2³⁹ = 470957928629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020713742517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020713742547) 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, 2190109 + ... + 2614957.

It is an arithmetic number, because the mean of its divisors is an integer number (145817017000).

Almost surely, 2^{1020713742517} is an apocalyptic number.

It is an amenable number.

1020713742517 is a deficient number, since it is larger than the sum of its proper divisors (145822393483).

1020713742517 is an equidigital number, since it uses as much as digits as its factorization.

1020713742517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768075.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 1020713742517 in words is "one trillion, twenty billion, seven hundred thirteen million, seven hundred forty-two thousand, five hundred seventeen".