231520341 has 8 divisors (see below), whose sum is σ = 332439520. Its totient is φ = 142474032.

The previous prime is 231520327. The next prime is 231520343. The reversal of 231520341 is 143025132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231520341 - 2⁹ = 231519829 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231520343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968171 + ... + 2968248.

It is an arithmetic number, because the mean of its divisors is an integer number (41554940).

Almost surely, 2^231520341 is an apocalyptic number.

It is an amenable number.

231520341 is a deficient number, since it is larger than the sum of its proper divisors (100919179).

231520341 is a wasteful number, since it uses less digits than its factorization.

231520341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936435.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 231520341 is about 15215.7924867553. The cubic root of 231520341 is about 614.0396061766.

Adding to 231520341 its reverse (143025132), we get a palindrome (374545473).

The spelling of 231520341 in words is "two hundred thirty-one million, five hundred twenty thousand, three hundred forty-one".