11539202317 has 2 divisors, whose sum is σ = 11539202318. Its totient is φ = 11539202316.

The previous prime is 11539202287. The next prime is 11539202329. The reversal of 11539202317 is 71320293511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9932314921 + 1606887396 = 99661^2 + 40086^2 .

It is a cyclic number.

It is not a de Polignac number, because 11539202317 - 2¹⁹ = 11538678029 is a prime.

It is a super-2 number, since 2×11539202317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11539200317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5769601158 + 5769601159.

It is an arithmetic number, because the mean of its divisors is an integer number (5769601159).

Almost surely, 2^11539202317 is an apocalyptic number.

It is an amenable number.

11539202317 is a deficient number, since it is larger than the sum of its proper divisors (1).

11539202317 is an equidigital number, since it uses as much as digits as its factorization.

11539202317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

Adding to 11539202317 its reverse (71320293511), we get a palindrome (82859495828).

The spelling of 11539202317 in words is "eleven billion, five hundred thirty-nine million, two hundred two thousand, three hundred seventeen".