213042322 has 4 divisors (see below), whose sum is σ = 319563486. Its totient is φ = 106521160.

The previous prime is 213042311. The next prime is 213042331. The reversal of 213042322 is 223240312.

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., 212838921 + 203401 = 14589^2 + 451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213042322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53260579 + ... + 53260582.

Almost surely, 2^213042322 is an apocalyptic number.

213042322 is a deficient number, since it is larger than the sum of its proper divisors (106521164).

213042322 is a wasteful number, since it uses less digits than its factorization.

213042322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106521163.

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

The square root of 213042322 is about 14595.9693751392. The cubic root of 213042322 is about 597.2488134953.

Adding to 213042322 its reverse (223240312), we get a palindrome (436282634).

The spelling of 213042322 in words is "two hundred thirteen million, forty-two thousand, three hundred twenty-two".