11317262820551 has 16 divisors (see below), whose sum is σ = 11820729439680. Its totient is φ = 10825699507200.

The previous prime is 11317262820503. The next prime is 11317262820557. The reversal of 11317262820551 is 15502826271311.

It is a cyclic number.

It is not a de Polignac number, because 11317262820551 - 2³⁸ = 11042384913607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11317262820557) 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 15 ways as a sum of consecutive naturals, for example, 9899516 + ... + 10983393.

It is an arithmetic number, because the mean of its divisors is an integer number (738795589980).

Almost surely, 2^{11317262820551} is an apocalyptic number.

11317262820551 is a deficient number, since it is larger than the sum of its proper divisors (503466619129).

11317262820551 is a wasteful number, since it uses less digits than its factorization.

11317262820551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20883194.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 11317262820551 in words is "eleven trillion, three hundred seventeen billion, two hundred sixty-two million, eight hundred twenty thousand, five hundred fifty-one".