212431234 has 8 divisors (see below), whose sum is σ = 318765888. Its totient is φ = 106175940.

The previous prime is 212431187. The next prime is 212431259. The reversal of 212431234 is 432134212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12622 + ... + 24169.

It is an arithmetic number, because the mean of its divisors is an integer number (39845736).

Almost surely, 2^212431234 is an apocalyptic number.

212431234 is a deficient number, since it is larger than the sum of its proper divisors (106334654).

212431234 is a wasteful number, since it uses less digits than its factorization.

212431234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39680.

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

The square root of 212431234 is about 14575.0208919233. The cubic root of 212431234 is about 596.6772195561.

Adding to 212431234 its reverse (432134212), we get a palindrome (644565446).

The spelling of 212431234 in words is "two hundred twelve million, four hundred thirty-one thousand, two hundred thirty-four".