213112103 has 2 divisors, whose sum is σ = 213112104. Its totient is φ = 213112102.

The previous prime is 213112091. The next prime is 213112117. The reversal of 213112103 is 301211312.

It is an a-pointer prime, because the next prime (213112117) can be obtained adding 213112103 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213112103 - 2⁴ = 213112087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213114103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556051 + 106556052.

It is an arithmetic number, because the mean of its divisors is an integer number (106556052).

Almost surely, 2^213112103 is an apocalyptic number.

213112103 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112103 is an equidigital number, since it uses as much as digits as its factorization.

213112103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 213112103 is about 14598.3595996263. The cubic root of 213112103 is about 597.3140150470.

Adding to 213112103 its reverse (301211312), we get a palindrome (514323415).

The spelling of 213112103 in words is "two hundred thirteen million, one hundred twelve thousand, one hundred three".