11111232000 has 320 divisors, whose sum is σ = 40308098688. Its totient is φ = 2693120000.

The previous prime is 11111231969. The next prime is 11111232001. The reversal of 11111232000 is 23211111.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (11111232001) 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, 2109370 + ... + 2114630.

Almost surely, 2^11111232000 is an apocalyptic number.

11111232000 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 11111232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20154049344).

11111232000 is an abundant number, since it is smaller than the sum of its proper divisors (29196866688).

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

11111232000 is an equidigital number, since it uses as much as digits as its factorization.

11111232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308 (or 5282 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11111232000 its reverse (23211111), we get a palindrome (11134443111).

The spelling of 11111232000 in words is "eleven billion, one hundred eleven million, two hundred thirty-two thousand".