11231200320 has 224 divisors, whose sum is σ = 36855440640. Its totient is φ = 2896158720.

The previous prime is 11231200313. The next prime is 11231200327. The reversal of 11231200320 is 2300213211.

It is an interprime number because it is at equal distance from previous prime (11231200313) and next prime (11231200327).

It is a super-2 number, since 2×11231200320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11231200320.

It is not an unprimeable number, because it can be changed into a prime (11231200327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3610926 + ... + 3614034.

Almost surely, 2^11231200320 is an apocalyptic number.

11231200320 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 11231200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18427720320).

11231200320 is an abundant number, since it is smaller than the sum of its proper divisors (25624240320).

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

11231200320 is a wasteful number, since it uses less digits than its factorization.

11231200320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11231200320 its reverse (2300213211), we get a palindrome (13531413531).

The spelling of 11231200320 in words is "eleven billion, two hundred thirty-one million, two hundred thousand, three hundred twenty".