201432531425423 has 4 divisors (see below), whose sum is σ = 203859429394488. Its totient is φ = 199005633456360.

The previous prime is 201432531425417. The next prime is 201432531425431. The reversal of 201432531425423 is 324524135234102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201432531425423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201432531421423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213448984408 + ... + 1213448984573.

It is an arithmetic number, because the mean of its divisors is an integer number (50964857348622).

Almost surely, 2^{201432531425423} is an apocalyptic number.

201432531425423 is a deficient number, since it is larger than the sum of its proper divisors (2426897969065).

201432531425423 is an equidigital number, since it uses as much as digits as its factorization.

201432531425423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426897969064.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 201432531425423 its reverse (324524135234102), we get a palindrome (525956666659525).

The spelling of 201432531425423 in words is "two hundred one trillion, four hundred thirty-two billion, five hundred thirty-one million, four hundred twenty-five thousand, four hundred twenty-three".