201343120000 has 160 divisors (see below), whose sum is σ = 546799968000. Its totient is φ = 73215360000.

The previous prime is 201343119953. The next prime is 201343120001. The reversal of 201343120000 is 21343102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (201343120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 765601 + ... + 994399.

It is an arithmetic number, because the mean of its divisors is an integer number (3417499800).

Almost surely, 2^201343120000 is an apocalyptic number.

201343120000 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 201343120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273399984000).

201343120000 is an abundant number, since it is smaller than the sum of its proper divisors (345456848000).

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

201343120000 is an equidigital number, since it uses as much as digits as its factorization.

201343120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228844 (or 228817 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201343120000 its reverse (21343102), we get a palindrome (201364463102).

The spelling of 201343120000 in words is "two hundred one billion, three hundred forty-three million, one hundred twenty thousand".