213312103 has 2 divisors, whose sum is σ = 213312104. Its totient is φ = 213312102.

The previous prime is 213312089. The next prime is 213312119. The reversal of 213312103 is 301213312.

It is an a-pointer prime, because the next prime (213312119) can be obtained adding 213312103 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213312103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213312133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106656051 + 106656052.

It is an arithmetic number, because the mean of its divisors is an integer number (106656052).

Almost surely, 2^213312103 is an apocalyptic number.

213312103 is a deficient number, since it is larger than the sum of its proper divisors (1).

213312103 is an equidigital number, since it uses as much as digits as its factorization.

213312103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213312103 is about 14605.2080779426. The cubic root of 213312103 is about 597.5008110258.

Adding to 213312103 its reverse (301213312), we get a palindrome (514525415).

The spelling of 213312103 in words is "two hundred thirteen million, three hundred twelve thousand, one hundred three".