213023422 has 4 divisors (see below), whose sum is σ = 319535136. Its totient is φ = 106511710.

The previous prime is 213023399. The next prime is 213023431. The reversal of 213023422 is 224320312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213023422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53255854 + ... + 53255857.

It is an arithmetic number, because the mean of its divisors is an integer number (79883784).

Almost surely, 2^213023422 is an apocalyptic number.

213023422 is a deficient number, since it is larger than the sum of its proper divisors (106511714).

213023422 is a wasteful number, since it uses less digits than its factorization.

213023422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106511713.

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

The square root of 213023422 is about 14595.3219217666. The cubic root of 213023422 is about 597.2311513765.

Adding to 213023422 its reverse (224320312), we get a palindrome (437343734).

It can be divided in two parts, 2130 and 23422, that added together give a palindrome (25552).

The spelling of 213023422 in words is "two hundred thirteen million, twenty-three thousand, four hundred twenty-two".