201324040000 has 140 divisors (see below), whose sum is σ = 501330772800. Its totient is φ = 80188864000.

The previous prime is 201324039997. The next prime is 201324040009. The reversal of 201324040000 is 40423102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201324040009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9549471 + ... + 9570529.

Almost surely, 2^201324040000 is an apocalyptic number.

201324040000 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 201324040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250665386400).

201324040000 is an abundant number, since it is smaller than the sum of its proper divisors (300006732800).

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

201324040000 is an equidigital number, since it uses as much as digits as its factorization.

201324040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21330 (or 21305 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 201324040000 its reverse (40423102), we get a palindrome (201364463102).

The spelling of 201324040000 in words is "two hundred one billion, three hundred twenty-four million, forty thousand".