231423061 has 2 divisors, whose sum is σ = 231423062. Its totient is φ = 231423060.

The previous prime is 231423041. The next prime is 231423077. The reversal of 231423061 is 160324132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231344100 + 78961 = 15210^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 231423061 - 2⁹ = 231422549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231423011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115711530 + 115711531.

It is an arithmetic number, because the mean of its divisors is an integer number (115711531).

Almost surely, 2^231423061 is an apocalyptic number.

It is an amenable number.

231423061 is a deficient number, since it is larger than the sum of its proper divisors (1).

231423061 is an equidigital number, since it uses as much as digits as its factorization.

231423061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 231423061 is about 15212.5954721737. The cubic root of 231423061 is about 613.9535919329.

Adding to 231423061 its reverse (160324132), we get a palindrome (391747193).

The spelling of 231423061 in words is "two hundred thirty-one million, four hundred twenty-three thousand, sixty-one".