11317000621 has 2 divisors, whose sum is σ = 11317000622. Its totient is φ = 11317000620.

The previous prime is 11317000579. The next prime is 11317000631. The reversal of 11317000621 is 12600071311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6799816521 + 4517184100 = 82461^2 + 67210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11317000621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11317000592 and 11317000601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11317000631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5658500310 + 5658500311.

It is an arithmetic number, because the mean of its divisors is an integer number (5658500311).

Almost surely, 2^11317000621 is an apocalyptic number.

It is an amenable number.

11317000621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11317000621 is an equidigital number, since it uses as much as digits as its factorization.

11317000621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 11317000621 its reverse (12600071311), we get a palindrome (23917071932).

The spelling of 11317000621 in words is "eleven billion, three hundred seventeen million, six hundred twenty-one", and thus it is an aban number.