212324431 has 8 divisors (see below), whose sum is σ = 241697664. Its totient is φ = 184629720.

The previous prime is 212324419. The next prime is 212324459. The reversal of 212324431 is 134423212.

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

It is not a de Polignac number, because 212324431 - 2⁹ = 212323919 is a prime.

It is a super-2 number, since 2×212324431² = 90163327998947522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212324471) 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, 419361 + ... + 419866.

It is an arithmetic number, because the mean of its divisors is an integer number (30212208).

Almost surely, 2^212324431 is an apocalyptic number.

212324431 is a deficient number, since it is larger than the sum of its proper divisors (29373233).

212324431 is a wasteful number, since it uses less digits than its factorization.

212324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839261.

The product of its digits is 1152, while the sum is 22.

The square root of 212324431 is about 14571.3565257323. The cubic root of 212324431 is about 596.5772066425.

Adding to 212324431 its reverse (134423212), we get a palindrome (346747643).

The spelling of 212324431 in words is "two hundred twelve million, three hundred twenty-four thousand, four hundred thirty-one".