231240301 has 4 divisors (see below), whose sum is σ = 231926812. Its totient is φ = 230553792.

The previous prime is 231240281. The next prime is 231240311. The reversal of 231240301 is 103042132.

It is a happy number.

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 76212900 + 155027401 = 8730^2 + 12451^2 .

It is a cyclic number.

It is not a de Polignac number, because 231240301 - 2¹¹ = 231238253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231240311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342750 + ... + 343423.

It is an arithmetic number, because the mean of its divisors is an integer number (57981703).

Almost surely, 2^231240301 is an apocalyptic number.

It is an amenable number.

231240301 is a deficient number, since it is larger than the sum of its proper divisors (686511).

231240301 is an equidigital number, since it uses as much as digits as its factorization.

231240301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686510.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231240301 is about 15206.5874212461. The cubic root of 231240301 is about 613.7919317131.

Adding to 231240301 its reverse (103042132), we get a palindrome (334282433).

The spelling of 231240301 in words is "two hundred thirty-one million, two hundred forty thousand, three hundred one".