11331323123220 has 144 divisors (see below), whose sum is σ = 34791155380800. Its totient is φ = 2984820446208.

The previous prime is 11331323123209. The next prime is 11331323123269. The reversal of 11331323123220 is 2232132313311.

11331323123220 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 1 + 323 + 12 + 322 + 0 = 666.

11331323123220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103016092 + ... + 103126028.

It is an arithmetic number, because the mean of its divisors is an integer number (241605245700).

Almost surely, 2^{11331323123220} is an apocalyptic number.

11331323123220 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 11331323123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17395577690400).

11331323123220 is an abundant number, since it is smaller than the sum of its proper divisors (23459832257580).

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

11331323123220 is a wasteful number, since it uses less digits than its factorization.

11331323123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116934 (or 116929 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 11331323123220 its reverse (2232132313311), we get a palindrome (13563455436531).

The spelling of 11331323123220 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-three million, one hundred twenty-three thousand, two hundred twenty".