201111132320 has 96 divisors (see below), whose sum is σ = 543576313728. Its totient is φ = 68879213568.

The previous prime is 201111132239. The next prime is 201111132337. The reversal of 201111132320 is 23231111102.

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, 965834 + ... + 1155446.

It is an arithmetic number, because the mean of its divisors is an integer number (5662253268).

Almost surely, 2^201111132320 is an apocalyptic number.

201111132320 is a gapful number since it is divisible by the number (20) 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 201111132320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271788156864).

201111132320 is an abundant number, since it is smaller than the sum of its proper divisors (342465181408).

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

201111132320 is a wasteful number, since it uses less digits than its factorization.

201111132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190582 (or 190574 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201111132320 its reverse (23231111102), we get a palindrome (224342243422).

The spelling of 201111132320 in words is "two hundred one billion, one hundred eleven million, one hundred thirty-two thousand, three hundred twenty".