231302421263 has 2 divisors, whose sum is σ = 231302421264. Its totient is φ = 231302421262.

The previous prime is 231302421257. The next prime is 231302421359. The reversal of 231302421263 is 362124203132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231302421263 - 2⁶ = 231302421199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231302420263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651210631 + 115651210632.

It is an arithmetic number, because the mean of its divisors is an integer number (115651210632).

Almost surely, 2^231302421263 is an apocalyptic number.

231302421263 is a deficient number, since it is larger than the sum of its proper divisors (1).

231302421263 is an equidigital number, since it uses as much as digits as its factorization.

231302421263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 231302421263 its reverse (362124203132), we get a palindrome (593426624395).

The spelling of 231302421263 in words is "two hundred thirty-one billion, three hundred two million, four hundred twenty-one thousand, two hundred sixty-three".