212315103 has 48 divisors (see below), whose sum is σ = 411780096. Its totient is φ = 101805120.

The previous prime is 212315087. The next prime is 212315111. The reversal of 212315103 is 301513212.

It is not a de Polignac number, because 212315103 - 2⁴ = 212315087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212315303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2775 + ... + 20792.

It is an arithmetic number, because the mean of its divisors is an integer number (8578752).

Almost surely, 2^212315103 is an apocalyptic number.

212315103 is a deficient number, since it is larger than the sum of its proper divisors (199464993).

212315103 is a wasteful number, since it uses less digits than its factorization.

212315103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23604 (or 23601 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 212315103 is about 14571.0364422027. The cubic root of 212315103 is about 596.5684700852.

Adding to 212315103 its reverse (301513212), we get a palindrome (513828315).

The spelling of 212315103 in words is "two hundred twelve million, three hundred fifteen thousand, one hundred three".