213024420242 has 4 divisors (see below), whose sum is σ = 319536630366. Its totient is φ = 106512210120.

The previous prime is 213024420209. The next prime is 213024420251. The reversal of 213024420242 is 242024420312.

213024420242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 154717142281 + 58307277961 = 393341^2 + 241469^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53256105059 + ... + 53256105062.

Almost surely, 2^213024420242 is an apocalyptic number.

213024420242 is a deficient number, since it is larger than the sum of its proper divisors (106512210124).

213024420242 is a wasteful number, since it uses less digits than its factorization.

213024420242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106512210123.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 213024420242 its reverse (242024420312), we get a palindrome (455048840554).

The spelling of 213024420242 in words is "two hundred thirteen billion, twenty-four million, four hundred twenty thousand, two hundred forty-two".