11232331440 has 80 divisors (see below), whose sum is σ = 37985711616. Its totient is φ = 2722988800.

The previous prime is 11232331433. The next prime is 11232331457. The reversal of 11232331440 is 4413323211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11232331440.

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, 2124696 + ... + 2129975.

Almost surely, 2^11232331440 is an apocalyptic number.

11232331440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232331440 is an abundant number, since it is smaller than the sum of its proper divisors (26753380176).

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

11232331440 is a wasteful number, since it uses less digits than its factorization.

11232331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254698 (or 4254692 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11232331440 its reverse (4413323211), we get a palindrome (15645654651).

The spelling of 11232331440 in words is "eleven billion, two hundred thirty-two million, three hundred thirty-one thousand, four hundred forty".