213268423 has 2 divisors, whose sum is σ = 213268424. Its totient is φ = 213268422.

The previous prime is 213268409. The next prime is 213268439. The reversal of 213268423 is 324862312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213268423 - 2⁹ = 213267911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213268493) 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, 106634211 + 106634212.

It is an arithmetic number, because the mean of its divisors is an integer number (106634212).

Almost surely, 2^213268423 is an apocalyptic number.

213268423 is a deficient number, since it is larger than the sum of its proper divisors (1).

213268423 is an equidigital number, since it uses as much as digits as its factorization.

213268423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 31.

The square root of 213268423 is about 14603.7126443929. The cubic root of 213268423 is about 597.4600247527.

The spelling of 213268423 in words is "two hundred thirteen million, two hundred sixty-eight thousand, four hundred twenty-three".