213323432242 has 4 divisors (see below), whose sum is σ = 319985148366. Its totient is φ = 106661716120.

The previous prime is 213323432237. The next prime is 213323432243. The reversal of 213323432242 is 242234323312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 199086408481 + 14237023761 = 446191^2 + 119319^2 .

It is not an unprimeable number, because it can be changed into a prime (213323432243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53330858059 + ... + 53330858062.

Almost surely, 2^213323432242 is an apocalyptic number.

213323432242 is a deficient number, since it is larger than the sum of its proper divisors (106661716124).

213323432242 is a wasteful number, since it uses less digits than its factorization.

213323432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106661716123.

The product of its digits is 41472, while the sum is 31.

Adding to 213323432242 its reverse (242234323312), we get a palindrome (455557755554).

The spelling of 213323432242 in words is "two hundred thirteen billion, three hundred twenty-three million, four hundred thirty-two thousand, two hundred forty-two".