11320232240 has 80 divisors (see below), whose sum is σ = 26472769920. Its totient is φ = 4501831680.

The previous prime is 11320232233. The next prime is 11320232257. The reversal of 11320232240 is 4223202311.

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 (20).

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, 19618832 + ... + 19619408.

It is an arithmetic number, because the mean of its divisors is an integer number (330909624).

Almost surely, 2^11320232240 is an apocalyptic number.

11320232240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320232240 is an abundant number, since it is smaller than the sum of its proper divisors (15152537680).

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

11320232240 is a wasteful number, since it uses less digits than its factorization.

11320232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 11320232240 its reverse (4223202311), we get a palindrome (15543434551).

The spelling of 11320232240 in words is "eleven billion, three hundred twenty million, two hundred thirty-two thousand, two hundred forty".