423321123263 has 2 divisors, whose sum is σ = 423321123264. Its totient is φ = 423321123262.

The previous prime is 423321123241. The next prime is 423321123361. The reversal of 423321123263 is 362321123324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423321123263 - 2²² = 423316928959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423321129263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211660561631 + 211660561632.

It is an arithmetic number, because the mean of its divisors is an integer number (211660561632).

Almost surely, 2^423321123263 is an apocalyptic number.

423321123263 is a deficient number, since it is larger than the sum of its proper divisors (1).

423321123263 is an equidigital number, since it uses as much as digits as its factorization.

423321123263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 32.

Adding to 423321123263 its reverse (362321123324), we get a palindrome (785642246587).

The spelling of 423321123263 in words is "four hundred twenty-three billion, three hundred twenty-one million, one hundred twenty-three thousand, two hundred sixty-three".