423263393291 has 2 divisors, whose sum is σ = 423263393292. Its totient is φ = 423263393290.

The previous prime is 423263393263. The next prime is 423263393303. The reversal of 423263393291 is 192393362324.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423263393291 is a prime.

It is not a weakly prime, because it can be changed into another prime (423263396291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211631696645 + 211631696646.

It is an arithmetic number, because the mean of its divisors is an integer number (211631696646).

Almost surely, 2^423263393291 is an apocalyptic number.

423263393291 is a deficient number, since it is larger than the sum of its proper divisors (1).

423263393291 is an equidigital number, since it uses as much as digits as its factorization.

423263393291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 47.

The spelling of 423263393291 in words is "four hundred twenty-three billion, two hundred sixty-three million, three hundred ninety-three thousand, two hundred ninety-one".