11331131333220 has 192 divisors, whose sum is σ = 35292782784000. Its totient is φ = 3018176888832.

The previous prime is 11331131333209. The next prime is 11331131333243. The reversal of 11331131333220 is 2233313113311.

11331131333220 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 11 + 313 + 332 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2728418664 + ... + 2728422816.

It is an arithmetic number, because the mean of its divisors is an integer number (183816577000).

Almost surely, 2^{11331131333220} is an apocalyptic number.

11331131333220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331131333220 is an abundant number, since it is smaller than the sum of its proper divisors (23961651450780).

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

11331131333220 is a wasteful number, since it uses less digits than its factorization.

11331131333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8739 (or 8731 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 11331131333220 its reverse (2233313113311), we get a palindrome (13564444446531).

The spelling of 11331131333220 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-three thousand, two hundred twenty".