231220341 has 24 divisors (see below), whose sum is σ = 366107040. Its totient is φ = 139456800.

The previous prime is 231220333. The next prime is 231220387. The reversal of 231220341 is 143022132.

It is not a de Polignac number, because 231220341 - 2³ = 231220333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231220841) 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 23 ways as a sum of consecutive naturals, for example, 15355 + ... + 26423.

It is an arithmetic number, because the mean of its divisors is an integer number (15254460).

Almost surely, 2^231220341 is an apocalyptic number.

It is an amenable number.

231220341 is a deficient number, since it is larger than the sum of its proper divisors (134886699).

231220341 is a wasteful number, since it uses less digits than its factorization.

231220341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11297 (or 11294 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231220341 is about 15205.9311125626. The cubic root of 231220341 is about 613.7742709516.

Adding to 231220341 its reverse (143022132), we get a palindrome (374242473).

The spelling of 231220341 in words is "two hundred thirty-one million, two hundred twenty thousand, three hundred forty-one".