11317262820520 has 64 divisors (see below), whose sum is σ = 26573529409920. Its totient is φ = 4329665243904.

The previous prime is 11317262820503. The next prime is 11317262820557. The reversal of 11317262820520 is 2502826271311.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9028347 + ... + 10205173.

It is an arithmetic number, because the mean of its divisors is an integer number (415211397030).

Almost surely, 2^{11317262820520} is an apocalyptic number.

11317262820520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11317262820520 is an abundant number, since it is smaller than the sum of its proper divisors (15256266589400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11317262820520 is a wasteful number, since it uses less digits than its factorization.

11317262820520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187314 (or 1187310 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 11317262820520 in words is "eleven trillion, three hundred seventeen billion, two hundred sixty-two million, eight hundred twenty thousand, five hundred twenty".