11321044420 has 48 divisors (see below), whose sum is σ = 27178639488. Its totient is φ = 3880339200.

The previous prime is 11321044403. The next prime is 11321044433. The reversal of 11321044420 is 2444012311.

It is a happy number.

It is a super-2 number, since 2×11321044420² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11321044391 and 11321044400.

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, 550320 + ... + 570520.

It is an arithmetic number, because the mean of its divisors is an integer number (566221656).

Almost surely, 2^11321044420 is an apocalyptic number.

11321044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321044420 is an abundant number, since it is smaller than the sum of its proper divisors (15857595068).

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

11321044420 is a wasteful number, since it uses less digits than its factorization.

11321044420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24220 (or 24218 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11321044420 its reverse (2444012311), we get a palindrome (13765056731).

The spelling of 11321044420 in words is "eleven billion, three hundred twenty-one million, forty-four thousand, four hundred twenty".