231601301 has 4 divisors (see below), whose sum is σ = 232595532. Its totient is φ = 230607072.

The previous prime is 231601261. The next prime is 231601303. The reversal of 231601301 is 103106132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140398801 + 91202500 = 11849^2 + 9550^2 .

It is a cyclic number.

It is not a de Polignac number, because 231601301 - 2¹⁴ = 231584917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231601301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231601303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496766 + ... + 497231.

It is an arithmetic number, because the mean of its divisors is an integer number (58148883).

Almost surely, 2^231601301 is an apocalyptic number.

It is an amenable number.

231601301 is a deficient number, since it is larger than the sum of its proper divisors (994231).

231601301 is an equidigital number, since it uses as much as digits as its factorization.

231601301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994230.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 231601301 is about 15218.4526480191. The cubic root of 231601301 is about 614.1111720310. Note that the first 4 decimals are identical.

Adding to 231601301 its reverse (103106132), we get a palindrome (334707433).

The spelling of 231601301 in words is "two hundred thirty-one million, six hundred one thousand, three hundred one".