201523223 has 8 divisors (see below), whose sum is σ = 222111120. Its totient is φ = 181313280.

The previous prime is 201523213. The next prime is 201523229. The reversal of 201523223 is 322325102.

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 201523223 - 2¹⁴ = 201506839 is a prime.

It is a super-2 number, since 2×201523223² = 81223218816615458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201523195 and 201523204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201523229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93368 + ... + 95501.

It is an arithmetic number, because the mean of its divisors is an integer number (27763890).

Almost surely, 2^201523223 is an apocalyptic number.

201523223 is a deficient number, since it is larger than the sum of its proper divisors (20587897).

201523223 is a wasteful number, since it uses less digits than its factorization.

201523223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188977.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 201523223 is about 14195.8875382978. The cubic root of 201523223 is about 586.2844381277.

Adding to 201523223 its reverse (322325102), we get a palindrome (523848325).

The spelling of 201523223 in words is "two hundred one million, five hundred twenty-three thousand, two hundred twenty-three".