1013503217 has 2 divisors, whose sum is σ = 1013503218. Its totient is φ = 1013503216.

The previous prime is 1013503201. The next prime is 1013503237. The reversal of 1013503217 is 7123053101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922701376 + 90801841 = 30376^2 + 9529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013503217 - 2⁴ = 1013503201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013503192 and 1013503201.

It is not a weakly prime, because it can be changed into another prime (1013503237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506751608 + 506751609.

It is an arithmetic number, because the mean of its divisors is an integer number (506751609).

Almost surely, 2^1013503217 is an apocalyptic number.

It is an amenable number.

1013503217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013503217 is an equidigital number, since it uses as much as digits as its factorization.

1013503217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1013503217 is about 31835.5652847566. The cubic root of 1013503217 is about 1004.4809633100.

Adding to 1013503217 its reverse (7123053101), we get a palindrome (8136556318).

The spelling of 1013503217 in words is "one billion, thirteen million, five hundred three thousand, two hundred seventeen".