201423530015 has 8 divisors (see below), whose sum is σ = 242480468688. Its totient is φ = 160624002240.

The previous prime is 201423530003. The next prime is 201423530041. The reversal of 201423530015 is 510035324102.

It is a happy number.

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

It is not a de Polignac number, because 201423530015 - 2²⁶ = 201356421151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64351001 + ... + 64354130.

It is an arithmetic number, because the mean of its divisors is an integer number (30310058586).

Almost surely, 2^201423530015 is an apocalyptic number.

201423530015 is a deficient number, since it is larger than the sum of its proper divisors (41056938673).

201423530015 is a wasteful number, since it uses less digits than its factorization.

201423530015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128705449.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 201423530015 its reverse (510035324102), we get a palindrome (711458854117).

The spelling of 201423530015 in words is "two hundred one billion, four hundred twenty-three million, five hundred thirty thousand, fifteen".