103212103 has 2 divisors, whose sum is σ = 103212104. Its totient is φ = 103212102.

The previous prime is 103212071. The next prime is 103212163. The reversal of 103212103 is 301212301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103212103 - 2⁵ = 103212071 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103212163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51606051 + 51606052.

It is an arithmetic number, because the mean of its divisors is an integer number (51606052).

Almost surely, 2^103212103 is an apocalyptic number.

103212103 is a deficient number, since it is larger than the sum of its proper divisors (1).

103212103 is an equidigital number, since it uses as much as digits as its factorization.

103212103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103212103 is about 10159.3357558455. The cubic root of 103212103 is about 469.0763556517.

Adding to 103212103 its reverse (301212301), we get a palindrome (404424404).

The spelling of 103212103 in words is "one hundred three million, two hundred twelve thousand, one hundred three".