11317262820521 has 8 divisors (see below), whose sum is σ = 13097736357120. Its totient is φ = 9577719710208.

The previous prime is 11317262820503. The next prime is 11317262820557. The reversal of 11317262820521 is 12502826271311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11317262820521 - 2³⁸ = 11042384913577 is a prime.

It is a super-2 number, since 2×11317262820521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11317262825521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10232605976 + ... + 10232607081.

It is an arithmetic number, because the mean of its divisors is an integer number (1637217044640).

Almost surely, 2^{11317262820521} is an apocalyptic number.

It is an amenable number.

11317262820521 is a deficient number, since it is larger than the sum of its proper divisors (1780473536599).

11317262820521 is an equidigital number, since it uses as much as digits as its factorization.

11317262820521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20465213143.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 11317262820521 in words is "eleven trillion, three hundred seventeen billion, two hundred sixty-two million, eight hundred twenty thousand, five hundred twenty-one".