231523201 has 8 divisors (see below), whose sum is σ = 284951744. Its totient is φ = 183183120.

The previous prime is 231523199. The next prime is 231523207. The reversal of 231523201 is 102325132.

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 231523201 - 2¹ = 231523199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231523207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272015 + ... + 1272196.

It is an arithmetic number, because the mean of its divisors is an integer number (35618968).

Almost surely, 2^231523201 is an apocalyptic number.

It is an amenable number.

231523201 is a deficient number, since it is larger than the sum of its proper divisors (53428543).

231523201 is a wasteful number, since it uses less digits than its factorization.

231523201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544231.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 231523201 is about 15215.8864677678. The cubic root of 231523201 is about 614.0421346025.

Adding to 231523201 its reverse (102325132), we get a palindrome (333848333).

The spelling of 231523201 in words is "two hundred thirty-one million, five hundred twenty-three thousand, two hundred one".