11266203520 has 576 divisors, whose sum is σ = 34733301120. Its totient is φ = 3467059200.

The previous prime is 11266203499. The next prime is 11266203541. The reversal of 11266203520 is 2530266211.

It is an interprime number because it is at equal distance from previous prime (11266203499) and next prime (11266203541).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 363425905 + ... + 363425935.

It is an arithmetic number, because the mean of its divisors is an integer number (60300870).

Almost surely, 2^11266203520 is an apocalyptic number.

11266203520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11266203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17366650560).

11266203520 is an abundant number, since it is smaller than the sum of its proper divisors (23467097600).

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

11266203520 is a wasteful number, since it uses less digits than its factorization.

11266203520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 11266203520 its reverse (2530266211), we get a palindrome (13796469731).

The spelling of 11266203520 in words is "eleven billion, two hundred sixty-six million, two hundred three thousand, five hundred twenty".