423013291 has 2 divisors, whose sum is σ = 423013292. Its totient is φ = 423013290.

The previous prime is 423013289. The next prime is 423013333. The reversal of 423013291 is 192310324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423013291 - 2¹ = 423013289 is a prime.

Together with 423013289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (423013391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211506645 + 211506646.

It is an arithmetic number, because the mean of its divisors is an integer number (211506646).

Almost surely, 2^423013291 is an apocalyptic number.

423013291 is a deficient number, since it is larger than the sum of its proper divisors (1).

423013291 is an equidigital number, since it uses as much as digits as its factorization.

423013291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 423013291 is about 20567.2869139320. The cubic root of 423013291 is about 750.6739370452.

The spelling of 423013291 in words is "four hundred twenty-three million, thirteen thousand, two hundred ninety-one".