23213042 has 4 divisors (see below), whose sum is σ = 34819566. Its totient is φ = 11606520.

The previous prime is 23213033. The next prime is 23213059. The reversal of 23213042 is 24031232.

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., 22174681 + 1038361 = 4709^2 + 1019^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23213042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5803259 + ... + 5803262.

Almost surely, 2^23213042 is an apocalyptic number.

23213042 is a deficient number, since it is larger than the sum of its proper divisors (11606524).

23213042 is a wasteful number, since it uses less digits than its factorization.

23213042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11606523.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23213042 is about 4817.9914902374. The cubic root of 23213042 is about 285.2620632524.

Adding to 23213042 its reverse (24031232), we get a palindrome (47244274).

The spelling of 23213042 in words is "twenty-three million, two hundred thirteen thousand, forty-two".