201203523 has 12 divisors (see below), whose sum is σ = 297716328. Its totient is φ = 130863840.

The previous prime is 201203503. The next prime is 201203533. The reversal of 201203523 is 325302102.

201203523 is a `hidden beast` number, since 20 + 120 + 3 + 523 = 666.

It is not a de Polignac number, because 201203523 - 2⁶ = 201203459 is a prime.

It is a super-2 number, since 2×201203523² = 80965715335223058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201203496 and 201203505.

It is not an unprimeable number, because it can be changed into a prime (201203503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272265 + ... + 273002.

It is an arithmetic number, because the mean of its divisors is an integer number (24809694).

Almost surely, 2^201203523 is an apocalyptic number.

201203523 is a deficient number, since it is larger than the sum of its proper divisors (96512805).

201203523 is a wasteful number, since it uses less digits than its factorization.

201203523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545314 (or 545311 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 201203523 is about 14184.6227655162. The cubic root of 201203523 is about 585.9742433748.

Adding to 201203523 its reverse (325302102), we get a palindrome (526505625).

The spelling of 201203523 in words is "two hundred one million, two hundred three thousand, five hundred twenty-three".