231042463 has 2 divisors, whose sum is σ = 231042464. Its totient is φ = 231042462.

The previous prime is 231042433. The next prime is 231042481. The reversal of 231042463 is 364240132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231042463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231042433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115521231 + 115521232.

It is an arithmetic number, because the mean of its divisors is an integer number (115521232).

Almost surely, 2^231042463 is an apocalyptic number.

231042463 is a deficient number, since it is larger than the sum of its proper divisors (1).

231042463 is an equidigital number, since it uses as much as digits as its factorization.

231042463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 231042463 is about 15200.0810195209. The cubic root of 231042463 is about 613.6168382218.

Adding to 231042463 its reverse (364240132), we get a palindrome (595282595).

The spelling of 231042463 in words is "two hundred thirty-one million, forty-two thousand, four hundred sixty-three".