213353423 has 4 divisors (see below), whose sum is σ = 214712520. Its totient is φ = 211994328.

The previous prime is 213353419. The next prime is 213353431. The reversal of 213353423 is 324353312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213353423 - 2² = 213353419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213353392 and 213353401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213353453) 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 in 3 ways as a sum of consecutive naturals, for example, 679313 + ... + 679626.

It is an arithmetic number, because the mean of its divisors is an integer number (53678130).

Almost surely, 2^213353423 is an apocalyptic number.

213353423 is a deficient number, since it is larger than the sum of its proper divisors (1359097).

213353423 is a wasteful number, since it uses less digits than its factorization.

213353423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359096.

The product of its digits is 6480, while the sum is 26.

The square root of 213353423 is about 14606.6225733398. The cubic root of 213353423 is about 597.5393885205.

The spelling of 213353423 in words is "two hundred thirteen million, three hundred fifty-three thousand, four hundred twenty-three".