210012103 has 16 divisors (see below), whose sum is σ = 254200320. Its totient is φ = 169605216.

The previous prime is 210012083. The next prime is 210012151. The reversal of 210012103 is 301210012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210012103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012163) 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 in 15 ways as a sum of consecutive naturals, for example, 1053 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (15887520).

Almost surely, 2^210012103 is an apocalyptic number.

210012103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

210012103 is a deficient number, since it is larger than the sum of its proper divisors (44188217).

210012103 is a wasteful number, since it uses less digits than its factorization.

210012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19566.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 210012103 is about 14491.7943333460. The cubic root of 210012103 is about 594.4036139915.

Adding to 210012103 its reverse (301210012), we get a palindrome (511222115).

It can be divided in two parts, 21001 and 2103, that added together give a square (23104 = 152²).

The spelling of 210012103 in words is "two hundred ten million, twelve thousand, one hundred three".