103216213 has 4 divisors (see below), whose sum is σ = 103648320. Its totient is φ = 102784108.

The previous prime is 103216177. The next prime is 103216259. The reversal of 103216213 is 312612301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103216213 - 2¹⁷ = 103085141 is a prime.

It is a super-2 number, since 2×103216213² = 21307173252122738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103216283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215695 + ... + 216172.

It is an arithmetic number, because the mean of its divisors is an integer number (25912080).

Almost surely, 2^103216213 is an apocalyptic number.

It is an amenable number.

103216213 is a deficient number, since it is larger than the sum of its proper divisors (432107).

103216213 is an equidigital number, since it uses as much as digits as its factorization.

103216213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432106.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 103216213 is about 10159.5380308359. The cubic root of 103216213 is about 469.0825819183.

Adding to 103216213 its reverse (312612301), we get a palindrome (415828514).

The spelling of 103216213 in words is "one hundred three million, two hundred sixteen thousand, two hundred thirteen".