11311231233320 has 32 divisors (see below), whose sum is σ = 25523193717000. Its totient is φ = 4511528325888.

The previous prime is 11311231233319. The next prime is 11311231233343. The reversal of 11311231233320 is 2333213211311.

11311231233320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6359102019076 + 4952129214244 = 2521726^2 + 2225338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11311231233320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405116099 + ... + 405144018.

Almost surely, 2^{11311231233320} is an apocalyptic number.

11311231233320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11311231233320 is an abundant number, since it is smaller than the sum of its proper divisors (14211962483680).

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

11311231233320 is a wasteful number, since it uses less digits than its factorization.

11311231233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810260477 (or 810260473 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 11311231233320 its reverse (2333213211311), we get a palindrome (13644444444631).

The spelling of 11311231233320 in words is "eleven trillion, three hundred eleven billion, two hundred thirty-one million, two hundred thirty-three thousand, three hundred twenty".