212433243 has 32 divisors (see below), whose sum is σ = 334083840. Its totient is φ = 118661760.

The previous prime is 212433227. The next prime is 212433269. The reversal of 212433243 is 342334212.

It is not a de Polignac number, because 212433243 - 2⁴ = 212433227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212433203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18621 + ... + 27777.

It is an arithmetic number, because the mean of its divisors is an integer number (10440120).

Almost surely, 2^212433243 is an apocalyptic number.

212433243 is a deficient number, since it is larger than the sum of its proper divisors (121650597).

212433243 is a wasteful number, since it uses less digits than its factorization.

212433243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227.

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

The square root of 212433243 is about 14575.0898110440. The cubic root of 212433243 is about 596.6791005111.

Adding to 212433243 its reverse (342334212), we get a palindrome (554767455).

The spelling of 212433243 in words is "two hundred twelve million, four hundred thirty-three thousand, two hundred forty-three".