42213113 has 4 divisors (see below), whose sum is σ = 42322020. Its totient is φ = 42104208.

The previous prime is 42213109. The next prime is 42213133. The reversal of 42213113 is 31131224.

42213113 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 can be written as a sum of positive squares in 2 ways, for example, as 22250089 + 19963024 = 4717^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 42213113 - 2² = 42213109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42213091 and 42213100.

It is not an unprimeable number, because it can be changed into a prime (42213133) 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, 53870 + ... + 54647.

It is an arithmetic number, because the mean of its divisors is an integer number (10580505).

Almost surely, 2^42213113 is an apocalyptic number.

It is an amenable number.

42213113 is a deficient number, since it is larger than the sum of its proper divisors (108907).

42213113 is a wasteful number, since it uses less digits than its factorization.

42213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108906.

The product of its digits is 144, while the sum is 17.

The square root of 42213113 is about 6497.1619188689. The cubic root of 42213113 is about 348.1895986476.

Adding to 42213113 its reverse (31131224), we get a palindrome (73344337).

The spelling of 42213113 in words is "forty-two million, two hundred thirteen thousand, one hundred thirteen".