210320103 has 12 divisors (see below), whose sum is σ = 326211000. Its totient is φ = 120182832.

The previous prime is 210320069. The next prime is 210320113. The reversal of 210320103 is 301023012.

It is a happy number.

It is not a de Polignac number, because 210320103 - 2⁹ = 210319591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210320113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 715228 + ... + 715521.

It is an arithmetic number, because the mean of its divisors is an integer number (27184250).

Almost surely, 2^210320103 is an apocalyptic number.

210320103 is a deficient number, since it is larger than the sum of its proper divisors (115890897).

210320103 is a wasteful number, since it uses less digits than its factorization.

210320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430766 (or 1430759 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 210320103 is about 14502.4171433592. The cubic root of 210320103 is about 594.6940526289.

Adding to 210320103 its reverse (301023012), we get a palindrome (511343115).

The spelling of 210320103 in words is "two hundred ten million, three hundred twenty thousand, one hundred three".