11321112240 has 120 divisors (see below), whose sum is σ = 38904362640. Its totient is φ = 2948746752.

The previous prime is 11321112221. The next prime is 11321112241. The reversal of 11321112240 is 4221112311.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11321112241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151875 + ... + 213794.

It is an arithmetic number, because the mean of its divisors is an integer number (324203022).

Almost surely, 2^11321112240 is an apocalyptic number.

11321112240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321112240 is an abundant number, since it is smaller than the sum of its proper divisors (27583250400).

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

11321112240 is a wasteful number, since it uses less digits than its factorization.

11321112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365731 (or 365722 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11321112240 its reverse (4221112311), we get a palindrome (15542224551).

The spelling of 11321112240 in words is "eleven billion, three hundred twenty-one million, one hundred twelve thousand, two hundred forty".