231134441 has 2 divisors, whose sum is σ = 231134442. Its totient is φ = 231134440.

The previous prime is 231134377. The next prime is 231134443. The reversal of 231134441 is 144431132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226201600 + 4932841 = 15040^2 + 2221^2 .

It is a cyclic number.

It is not a de Polignac number, because 231134441 - 2⁶ = 231134377 is a prime.

It is a Sophie Germain prime.

Together with 231134443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (231134443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115567220 + 115567221.

It is an arithmetic number, because the mean of its divisors is an integer number (115567221).

Almost surely, 2^231134441 is an apocalyptic number.

It is an amenable number.

231134441 is a deficient number, since it is larger than the sum of its proper divisors (1).

231134441 is an equidigital number, since it uses as much as digits as its factorization.

231134441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 231134441 is about 15203.1062944386. The cubic root of 231134441 is about 613.6982543693.

Adding to 231134441 its reverse (144431132), we get a palindrome (375565573).

The spelling of 231134441 in words is "two hundred thirty-one million, one hundred thirty-four thousand, four hundred forty-one".