201324342340 has 36 divisors (see below), whose sum is σ = 464709830508. Its totient is φ = 73208850880.

The previous prime is 201324342311. The next prime is 201324342343. The reversal of 201324342340 is 43243423102.

It can be written as a sum of positive squares in 2 ways, for example, as 100738951236 + 100585391104 = 317394^2 + 317152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201324342299 and 201324342308.

It is not an unprimeable number, because it can be changed into a prime (201324342343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41593519 + ... + 41598358.

It is an arithmetic number, because the mean of its divisors is an integer number (12908606403).

Almost surely, 2^201324342340 is an apocalyptic number.

201324342340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201324342340 is an abundant number, since it is smaller than the sum of its proper divisors (263385488168).

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

201324342340 is a wasteful number, since it uses less digits than its factorization.

201324342340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83191908 (or 83191895 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 201324342340 its reverse (43243423102), we get a palindrome (244567765442).

The spelling of 201324342340 in words is "two hundred one billion, three hundred twenty-four million, three hundred forty-two thousand, three hundred forty".