231310441 has 2 divisors, whose sum is σ = 231310442. Its totient is φ = 231310440.

The previous prime is 231310433. The next prime is 231310447. The reversal of 231310441 is 144013132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176491225 + 54819216 = 13285^2 + 7404^2 .

It is a cyclic number.

It is not a de Polignac number, because 231310441 - 2³ = 231310433 is a prime.

It is a super-2 number, since 2×231310441² = 107009040231228962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231310447) 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 as a sum of consecutive naturals, namely, 115655220 + 115655221.

It is an arithmetic number, because the mean of its divisors is an integer number (115655221).

Almost surely, 2^231310441 is an apocalyptic number.

It is an amenable number.

231310441 is a deficient number, since it is larger than the sum of its proper divisors (1).

231310441 is an equidigital number, since it uses as much as digits as its factorization.

231310441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 231310441 is about 15208.8934837483. The cubic root of 231310441 is about 613.8539840657.

Adding to 231310441 its reverse (144013132), we get a palindrome (375323573).

The spelling of 231310441 in words is "two hundred thirty-one million, three hundred ten thousand, four hundred forty-one".