11232012440 has 32 divisors (see below), whose sum is σ = 27569486160. Its totient is φ = 4084368000.

The previous prime is 11232012419. The next prime is 11232012479. The reversal of 11232012440 is 4421023211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12763211 + ... + 12764090.

Almost surely, 2^11232012440 is an apocalyptic number.

11232012440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232012440 is an abundant number, since it is smaller than the sum of its proper divisors (16337473720).

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

11232012440 is a wasteful number, since it uses less digits than its factorization.

11232012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25527323 (or 25527319 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11232012440 its reverse (4421023211), we get a palindrome (15653035651).

The spelling of 11232012440 in words is "eleven billion, two hundred thirty-two million, twelve thousand, four hundred forty".