11331140420 has 48 divisors (see below), whose sum is σ = 24629497200. Its totient is φ = 4373752320.

The previous prime is 11331140413. The next prime is 11331140473. The reversal of 11331140420 is 2404113311.

11331140420 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 8 ways, for example, as 1047557956 + 10283582464 = 32366^2 + 101408^2 .

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 = 11331140392 and 11331140401.

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 15 ways as a sum of consecutive naturals, for example, 1334990 + ... + 1343450.

It is an arithmetic number, because the mean of its divisors is an integer number (513114525).

Almost surely, 2^11331140420 is an apocalyptic number.

11331140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331140420 is an abundant number, since it is smaller than the sum of its proper divisors (13298356780).

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

11331140420 is a wasteful number, since it uses less digits than its factorization.

11331140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10808 (or 10806 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11331140420 its reverse (2404113311), we get a palindrome (13735253731).

The spelling of 11331140420 in words is "eleven billion, three hundred thirty-one million, one hundred forty thousand, four hundred twenty".