11324531240 has 128 divisors (see below), whose sum is σ = 29673216000. Its totient is φ = 3846124800.

The previous prime is 11324531237. The next prime is 11324531269. The reversal of 11324531240 is 4213542311.

It is a happy number.

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, 584021 + ... + 603099.

It is an arithmetic number, because the mean of its divisors is an integer number (231822000).

Almost surely, 2^11324531240 is an apocalyptic number.

11324531240 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 11324531240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14836608000).

11324531240 is an abundant number, since it is smaller than the sum of its proper divisors (18348684760).

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

11324531240 is a wasteful number, since it uses less digits than its factorization.

11324531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19191 (or 19187 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 11324531240 in words is "eleven billion, three hundred twenty-four million, five hundred thirty-one thousand, two hundred forty".