231321041 has 16 divisors (see below), whose sum is σ = 268033920. Its totient is φ = 195540480.

The previous prime is 231321019. The next prime is 231321043. The reversal of 231321041 is 140123132.

It is a cyclic number.

It is not a de Polignac number, because 231321041 - 2²² = 227126737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231321043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312650 + ... + 313388.

It is an arithmetic number, because the mean of its divisors is an integer number (16752120).

Almost surely, 2^231321041 is an apocalyptic number.

It is an amenable number.

231321041 is a deficient number, since it is larger than the sum of its proper divisors (36712879).

231321041 is an equidigital number, since it uses as much as digits as its factorization.

231321041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 231321041 is about 15209.2419600715. The cubic root of 231321041 is about 613.8633607181.

Adding to 231321041 its reverse (140123132), we get a palindrome (371444173).

The spelling of 231321041 in words is "two hundred thirty-one million, three hundred twenty-one thousand, forty-one".