201323634463 has 4 divisors (see below), whose sum is σ = 230084153680. Its totient is φ = 172563115248.

The previous prime is 201323634409. The next prime is 201323634541. The reversal of 201323634463 is 364436323102.

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-201323634463 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 (201323634163) 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, 14380259598 + ... + 14380259611.

It is an arithmetic number, because the mean of its divisors is an integer number (57521038420).

Almost surely, 2^201323634463 is an apocalyptic number.

201323634463 is a deficient number, since it is larger than the sum of its proper divisors (28760519217).

201323634463 is an equidigital number, since it uses as much as digits as its factorization.

201323634463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28760519216.

The product of its (nonzero) digits is 186624, while the sum is 37.

Adding to 201323634463 its reverse (364436323102), we get a palindrome (565759957565).

The spelling of 201323634463 in words is "two hundred one billion, three hundred twenty-three million, six hundred thirty-four thousand, four hundred sixty-three".