42213023 has 4 divisors (see below), whose sum is σ = 44696160. Its totient is φ = 39729888.

The previous prime is 42213013. The next prime is 42213029. The reversal of 42213023 is 32031224.

42213023 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 is a cyclic number.

It is not a de Polignac number, because 42213023 - 2¹² = 42208927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 2483119 = 42213023 / (4 + 2 + 2 + 1 + 3 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42212992 and 42213010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42213029) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1241543 + ... + 1241576.

It is an arithmetic number, because the mean of its divisors is an integer number (11174040).

Almost surely, 2^42213023 is an apocalyptic number.

42213023 is a deficient number, since it is larger than the sum of its proper divisors (2483137).

42213023 is a wasteful number, since it uses less digits than its factorization.

42213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483136.

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

The square root of 42213023 is about 6497.1549927641. The cubic root of 42213023 is about 348.1893511961.

Adding to 42213023 its reverse (32031224), we get a palindrome (74244247).

The spelling of 42213023 in words is "forty-two million, two hundred thirteen thousand, twenty-three".