11420443332 has 144 divisors (see below), whose sum is σ = 30050092800. Its totient is φ = 3654858240.

The previous prime is 11420443303. The next prime is 11420443343. The reversal of 11420443332 is 23334402411.

It is a junction number, because it is equal to n+sod(n) for n = 11420443296 and 11420443305.

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, 27256219 + ... + 27256637.

It is an arithmetic number, because the mean of its divisors is an integer number (208681200).

Almost surely, 2^11420443332 is an apocalyptic number.

11420443332 is a gapful number since it is divisible by the number (12) 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 11420443332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15025046400).

11420443332 is an abundant number, since it is smaller than the sum of its proper divisors (18629649468).

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

11420443332 is a wasteful number, since it uses less digits than its factorization.

11420443332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 11420443332 its reverse (23334402411), we get a palindrome (34754845743).

The spelling of 11420443332 in words is "eleven billion, four hundred twenty million, four hundred forty-three thousand, three hundred thirty-two".