213443042 has 8 divisors (see below), whose sum is σ = 320795100. Its totient is φ = 106511344.

The previous prime is 213443023. The next prime is 213443051. The reversal of 213443042 is 240344312.

213443042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206468161 + 6974881 = 14369^2 + 2641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 213442999 and 213443017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103817 + ... + 105852.

Almost surely, 2^213443042 is an apocalyptic number.

213443042 is a deficient number, since it is larger than the sum of its proper divisors (107352058).

213443042 is a wasteful number, since it uses less digits than its factorization.

213443042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210180.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 213443042 is about 14609.6900035559. The cubic root of 213443042 is about 597.6230421837.

Adding to 213443042 its reverse (240344312), we get a palindrome (453787354).

The spelling of 213443042 in words is "two hundred thirteen million, four hundred forty-three thousand, forty-two".