423552451212391 has 2 divisors, whose sum is σ = 423552451212392. Its totient is φ = 423552451212390.

The previous prime is 423552451212379. The next prime is 423552451212533. The reversal of 423552451212391 is 193212154255324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423552451212391 - 2¹⁵ = 423552451179623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423552451212361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211776225606195 + 211776225606196.

It is an arithmetic number, because the mean of its divisors is an integer number (211776225606196).

Almost surely, 2^{423552451212391} is an apocalyptic number.

423552451212391 is a deficient number, since it is larger than the sum of its proper divisors (1).

423552451212391 is an equidigital number, since it uses as much as digits as its factorization.

423552451212391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592000, while the sum is 49.

The spelling of 423552451212391 in words is "four hundred twenty-three trillion, five hundred fifty-two billion, four hundred fifty-one million, two hundred twelve thousand, three hundred ninety-one".