201430523 has 16 divisors (see below), whose sum is σ = 237028800. Its totient is φ = 171093888.

The previous prime is 201430513. The next prime is 201430531. The reversal of 201430523 is 325034102.

It is a happy number.

201430523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201430523 - 2¹⁰ = 201429499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201430495 and 201430504.

It is not an unprimeable number, because it can be changed into a prime (201430513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36161 + ... + 41357.

It is an arithmetic number, because the mean of its divisors is an integer number (14814300).

Almost surely, 2^201430523 is an apocalyptic number.

201430523 is a deficient number, since it is larger than the sum of its proper divisors (35598277).

201430523 is an equidigital number, since it uses as much as digits as its factorization.

201430523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331 (or 5317 counting only the distinct ones).

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

The square root of 201430523 is about 14192.6221326434. The cubic root of 201430523 is about 586.1945280549.

Adding to 201430523 its reverse (325034102), we get a palindrome (526464625).

The spelling of 201430523 in words is "two hundred one million, four hundred thirty thousand, five hundred twenty-three".