212303242 has 8 divisors (see below), whose sum is σ = 337187556. Its totient is φ = 99907392.

The previous prime is 212303239. The next prime is 212303243. The reversal of 212303242 is 242303212.

It can be written as a sum of positive squares in 2 ways, for example, as 209409841 + 2893401 = 14471^2 + 1701^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212303243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3122073 + ... + 3122140.

Almost surely, 2^212303242 is an apocalyptic number.

212303242 is a deficient number, since it is larger than the sum of its proper divisors (124884314).

212303242 is a wasteful number, since it uses less digits than its factorization.

212303242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244232.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 212303242 is about 14570.6294304673. The cubic root of 212303242 is about 596.5573607634.

Adding to 212303242 its reverse (242303212), we get a palindrome (454606454).

The spelling of 212303242 in words is "two hundred twelve million, three hundred three thousand, two hundred forty-two".