213120410242 has 4 divisors (see below), whose sum is σ = 319680615366. Its totient is φ = 106560205120.

The previous prime is 213120410231. The next prime is 213120410297. The reversal of 213120410242 is 242014021312.

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., 173239920841 + 39880489401 = 416221^2 + 199701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53280102559 + ... + 53280102562.

Almost surely, 2^213120410242 is an apocalyptic number.

213120410242 is a deficient number, since it is larger than the sum of its proper divisors (106560205124).

213120410242 is a wasteful number, since it uses less digits than its factorization.

213120410242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106560205123.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 213120410242 its reverse (242014021312), we get a palindrome (455134431554).

The spelling of 213120410242 in words is "two hundred thirteen billion, one hundred twenty million, four hundred ten thousand, two hundred forty-two".