11317262820547 has 4 divisors (see below), whose sum is σ = 11317712782600. Its totient is φ = 11316812858496.

The previous prime is 11317262820503. The next prime is 11317262820557. The reversal of 11317262820547 is 74502826271311.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11317262820547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11317262820547.

It is not an unprimeable number, because it can be changed into a prime (11317262820557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224943297 + ... + 224993602.

It is an arithmetic number, because the mean of its divisors is an integer number (2829428195650).

Almost surely, 2^{11317262820547} is an apocalyptic number.

11317262820547 is a deficient number, since it is larger than the sum of its proper divisors (449962053).

11317262820547 is an equidigital number, since it uses as much as digits as its factorization.

11317262820547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449962052.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 11317262820547 in words is "eleven trillion, three hundred seventeen billion, two hundred sixty-two million, eight hundred twenty thousand, five hundred forty-seven".