210321232103 has 2 divisors, whose sum is σ = 210321232104. Its totient is φ = 210321232102.

The previous prime is 210321232073. The next prime is 210321232117. The reversal of 210321232103 is 301232123012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210321232103 - 2⁸ = 210321231847 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210321232133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105160616051 + 105160616052.

It is an arithmetic number, because the mean of its divisors is an integer number (105160616052).

Almost surely, 2^210321232103 is an apocalyptic number.

210321232103 is a deficient number, since it is larger than the sum of its proper divisors (1).

210321232103 is an equidigital number, since it uses as much as digits as its factorization.

210321232103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 210321232103 its reverse (301232123012), we get a palindrome (511553355115).

The spelling of 210321232103 in words is "two hundred ten billion, three hundred twenty-one million, two hundred thirty-two thousand, one hundred three".