1020140034517 has 2 divisors, whose sum is σ = 1020140034518. Its totient is φ = 1020140034516.

The previous prime is 1020140034479. The next prime is 1020140034523. The reversal of 1020140034517 is 7154300410201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 957724505956 + 62415528561 = 978634^2 + 249831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020140034517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020140034527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510070017258 + 510070017259.

It is an arithmetic number, because the mean of its divisors is an integer number (510070017259).

Almost surely, 2^{1020140034517} is an apocalyptic number.

It is an amenable number.

1020140034517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020140034517 is an equidigital number, since it uses as much as digits as its factorization.

1020140034517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 1020140034517 its reverse (7154300410201), we get a palindrome (8174440444718).

The spelling of 1020140034517 in words is "one trillion, twenty billion, one hundred forty million, thirty-four thousand, five hundred seventeen".