213103442 has 8 divisors (see below), whose sum is σ = 327089136. Its totient is φ = 104073732.

The previous prime is 213103417. The next prime is 213103489. The reversal of 213103442 is 244301312.

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

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, 1238888 + ... + 1239059.

It is an arithmetic number, because the mean of its divisors is an integer number (40886142).

Almost surely, 2^213103442 is an apocalyptic number.

213103442 is a deficient number, since it is larger than the sum of its proper divisors (113985694).

213103442 is a wasteful number, since it uses less digits than its factorization.

213103442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477992.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213103442 is about 14598.0629536935. The cubic root of 213103442 is about 597.3059232076.

Adding to 213103442 its reverse (244301312), we get a palindrome (457404754).

The spelling of 213103442 in words is "two hundred thirteen million, one hundred three thousand, four hundred forty-two".