231144341 has 2 divisors, whose sum is σ = 231144342. Its totient is φ = 231144340.

The previous prime is 231144313. The next prime is 231144343. The reversal of 231144341 is 143441132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229643716 + 1500625 = 15154^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 231144341 - 2²² = 226950037 is a prime.

Together with 231144343, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_12702083 and since 231144341 and 12702083 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231144343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115572170 + 115572171.

It is an arithmetic number, because the mean of its divisors is an integer number (115572171).

Almost surely, 2^231144341 is an apocalyptic number.

It is an amenable number.

231144341 is a deficient number, since it is larger than the sum of its proper divisors (1).

231144341 is an equidigital number, since it uses as much as digits as its factorization.

231144341 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 231144341 is about 15203.4318823087. The cubic root of 231144341 is about 613.7070162626.

Adding to 231144341 its reverse (143441132), we get a palindrome (374585473).

The spelling of 231144341 in words is "two hundred thirty-one million, one hundred forty-four thousand, three hundred forty-one".