201123333320 has 128 divisors (see below), whose sum is σ = 557438112000. Its totient is φ = 63597229056.

The previous prime is 201123333233. The next prime is 201123333329. The reversal of 201123333320 is 23333321102.

It is not an unprimeable number, because it can be changed into a prime (201123333329) 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, 4297406 + ... + 4343954.

It is an arithmetic number, because the mean of its divisors is an integer number (4354985250).

Almost surely, 2^201123333320 is an apocalyptic number.

201123333320 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 201123333320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278719056000).

201123333320 is an abundant number, since it is smaller than the sum of its proper divisors (356314778680).

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

201123333320 is a wasteful number, since it uses less digits than its factorization.

201123333320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47767 (or 47763 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 201123333320 its reverse (23333321102), we get a palindrome (224456654422).

The spelling of 201123333320 in words is "two hundred one billion, one hundred twenty-three million, three hundred thirty-three thousand, three hundred twenty".