11321303240 has 96 divisors (see below), whose sum is σ = 27802414080. Its totient is φ = 4146944256.

The previous prime is 11321303239. The next prime is 11321303251. The reversal of 11321303240 is 4230312311.

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 23 ways as a sum of consecutive naturals, for example, 851927 + ... + 865113.

It is an arithmetic number, because the mean of its divisors is an integer number (289608480).

Almost surely, 2^11321303240 is an apocalyptic number.

11321303240 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 11321303240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13901207040).

11321303240 is an abundant number, since it is smaller than the sum of its proper divisors (16481110840).

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

11321303240 is a wasteful number, since it uses less digits than its factorization.

11321303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13351 (or 13334 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11321303240 its reverse (4230312311), we get a palindrome (15551615551).

The spelling of 11321303240 in words is "eleven billion, three hundred twenty-one million, three hundred three thousand, two hundred forty".