213432423 has 8 divisors (see below), whose sum is σ = 284696688. Its totient is φ = 142228224.

The previous prime is 213432421. The next prime is 213432449. The reversal of 213432423 is 324234312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213432423 - 2¹ = 213432421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213432393 and 213432402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213432421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5940 + ... + 21497.

It is an arithmetic number, because the mean of its divisors is an integer number (35587086).

Almost surely, 2^213432423 is an apocalyptic number.

213432423 is a deficient number, since it is larger than the sum of its proper divisors (71264265).

213432423 is a wasteful number, since it uses less digits than its factorization.

213432423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30033.

The product of its digits is 3456, while the sum is 24.

The square root of 213432423 is about 14609.3265758556. The cubic root of 213432423 is about 597.6131312425.

Adding to 213432423 its reverse (324234312), we get a palindrome (537666735).

The spelling of 213432423 in words is "two hundred thirteen million, four hundred thirty-two thousand, four hundred twenty-three".