213103106 has 8 divisors (see below), whose sum is σ = 320512764. Its totient is φ = 106265520.

The previous prime is 213103097. The next prime is 213103127. The reversal of 213103106 is 601301312.

It can be written as a sum of positive squares in 2 ways, for example, as 196252081 + 16851025 = 14009^2 + 4105^2 .

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

It is a Curzon number.

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, 142085 + ... + 143576.

Almost surely, 2^213103106 is an apocalyptic number.

213103106 is a deficient number, since it is larger than the sum of its proper divisors (107409658).

213103106 is a wasteful number, since it uses less digits than its factorization.

213103106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286036.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 213103106 is about 14598.0514453128. The cubic root of 213103106 is about 597.3056092835.

Adding to 213103106 its reverse (601301312), we get a palindrome (814404418).

The spelling of 213103106 in words is "two hundred thirteen million, one hundred three thousand, one hundred six".