11111320333020 has 48 divisors (see below), whose sum is σ = 31130819330688. Its totient is φ = 2961197574720.

The previous prime is 11111320333007. The next prime is 11111320333033. The reversal of 11111320333020 is 2033302311111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11111320333007) and next prime (11111320333033).

It is a super-2 number, since 2×11111320333020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56813466 + ... + 57008705.

It is an arithmetic number, because the mean of its divisors is an integer number (648558736056).

Almost surely, 2^{11111320333020} is an apocalyptic number.

11111320333020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111320333020 is an abundant number, since it is smaller than the sum of its proper divisors (20019498997668).

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

11111320333020 is a wasteful number, since it uses less digits than its factorization.

11111320333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113823810 (or 113823808 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11111320333020 its reverse (2033302311111), we get a palindrome (13144622644131).

The spelling of 11111320333020 in words is "eleven trillion, one hundred eleven billion, three hundred twenty million, three hundred thirty-three thousand, twenty".