212303234 has 32 divisors (see below), whose sum is σ = 375024384. Its totient is φ = 88865280.

The previous prime is 212303219. The next prime is 212303237. The reversal of 212303234 is 432303212.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (212303237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191927 + ... + 193029.

It is an arithmetic number, because the mean of its divisors is an integer number (11719512).

Almost surely, 2^212303234 is an apocalyptic number.

212303234 is a deficient number, since it is larger than the sum of its proper divisors (162721150).

212303234 is a wasteful number, since it uses less digits than its factorization.

212303234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 212303234 is about 14570.6291559424. The cubic root of 212303234 is about 596.5573532703.

Adding to 212303234 its reverse (432303212), we get a palindrome (644606446).

The spelling of 212303234 in words is "two hundred twelve million, three hundred three thousand, two hundred thirty-four".