11331131101220 has 24 divisors (see below), whose sum is σ = 27194714643264. Its totient is φ = 3884959234656.

The previous prime is 11331131101219. The next prime is 11331131101247. The reversal of 11331131101220 is 2210113113311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11331131101192 and 11331131101201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40468325222 + ... + 40468325501.

It is an arithmetic number, because the mean of its divisors is an integer number (1133113110136).

Almost surely, 2^{11331131101220} is an apocalyptic number.

11331131101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331131101220 is an abundant number, since it is smaller than the sum of its proper divisors (15863583542044).

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

11331131101220 is a wasteful number, since it uses less digits than its factorization.

11331131101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80936650739 (or 80936650737 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11331131101220 its reverse (2210113113311), we get a palindrome (13541244214531).

The spelling of 11331131101220 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred one thousand, two hundred twenty".