11443132040 has 128 divisors (see below), whose sum is σ = 27884736000. Its totient is φ = 4213321728.

The previous prime is 11443132039. The next prime is 11443132073. The reversal of 11443132040 is 4023134411.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 11443131997 and 11443132015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11712032 + ... + 11713008.

It is an arithmetic number, because the mean of its divisors is an integer number (217849500).

Almost surely, 2^11443132040 is an apocalyptic number.

11443132040 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 11443132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13942368000).

11443132040 is an abundant number, since it is smaller than the sum of its proper divisors (16441603960).

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

11443132040 is a wasteful number, since it uses less digits than its factorization.

11443132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11443132040 its reverse (4023134411), we get a palindrome (15466266451).

The spelling of 11443132040 in words is "eleven billion, four hundred forty-three million, one hundred thirty-two thousand, forty".