11155232000 has 432 divisors, whose sum is σ = 31721866176. Its totient is φ = 3902976000.

The previous prime is 11155231991. The next prime is 11155232003. The reversal of 11155232000 is 23255111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155232003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166495967 + ... + 166496033.

Almost surely, 2^11155232000 is an apocalyptic number.

11155232000 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 11155232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15860933088).

11155232000 is an abundant number, since it is smaller than the sum of its proper divisors (20566634176).

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

11155232000 is an equidigital number, since it uses as much as digits as its factorization.

11155232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 11155232000 its reverse (23255111), we get a palindrome (11178487111).

The spelling of 11155232000 in words is "eleven billion, one hundred fifty-five million, two hundred thirty-two thousand".