1013503423 has 4 divisors (see below), whose sum is σ = 1014289768. Its totient is φ = 1012717080.

The previous prime is 1013503411. The next prime is 1013503459. The reversal of 1013503423 is 3243053101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013503423 - 2⁹ = 1013502911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013503394 and 1013503403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013503493) 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 in 3 ways as a sum of consecutive naturals, for example, 391236 + ... + 393817.

It is an arithmetic number, because the mean of its divisors is an integer number (253572442).

Almost surely, 2^1013503423 is an apocalyptic number.

1013503423 is a deficient number, since it is larger than the sum of its proper divisors (786345).

1013503423 is an equidigital number, since it uses as much as digits as its factorization.

1013503423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786344.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1013503423 is about 31835.5685201317. The cubic root of 1013503423 is about 1004.4810313654.

Adding to 1013503423 its reverse (3243053101), we get a palindrome (4256556524).

The spelling of 1013503423 in words is "one billion, thirteen million, five hundred three thousand, four hundred twenty-three".