201340342423 has 8 divisors (see below), whose sum is σ = 219647892096. Its totient is φ = 183033439800.

The previous prime is 201340342409. The next prime is 201340342439. The reversal of 201340342423 is 324243043102.

201340342423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201340342423 - 2⁹ = 201340341911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201340342391 and 201340342400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201340343423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678790 + ... + 929212.

It is an arithmetic number, because the mean of its divisors is an integer number (27455986512).

Almost surely, 2^201340342423 is an apocalyptic number.

201340342423 is a deficient number, since it is larger than the sum of its proper divisors (18307549673).

201340342423 is a wasteful number, since it uses less digits than its factorization.

201340342423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323525.

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

Adding to 201340342423 its reverse (324243043102), we get a palindrome (525583385525).

The spelling of 201340342423 in words is "two hundred one billion, three hundred forty million, three hundred forty-two thousand, four hundred twenty-three".