1013505523 has 2 divisors, whose sum is σ = 1013505524. Its totient is φ = 1013505522.

The previous prime is 1013505499. The next prime is 1013505553. The reversal of 1013505523 is 3255053101.

It is a weak prime.

It is an emirp because it is prime and its reverse (3255053101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1013505523 - 2⁵ = 1013505491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1013505553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506752761 + 506752762.

It is an arithmetic number, because the mean of its divisors is an integer number (506752762).

Almost surely, 2^1013505523 is an apocalyptic number.

1013505523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013505523 is an equidigital number, since it uses as much as digits as its factorization.

1013505523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1013505523 is about 31835.6015020920. The cubic root of 1013505523 is about 1004.4817251334.

Adding to 1013505523 its reverse (3255053101), we get a palindrome (4268558624).

The spelling of 1013505523 in words is "one billion, thirteen million, five hundred five thousand, five hundred twenty-three".