210021111101103 has 16 divisors (see below), whose sum is σ = 280688521188096. Its totient is φ = 139684093211520.

The previous prime is 210021111101101. The next prime is 210021111101107. The reversal of 210021111101103 is 301101111120012.

It is not a de Polignac number, because 210021111101103 - 2¹ = 210021111101101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021111101101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21622378 + ... + 29792103.

It is an arithmetic number, because the mean of its divisors is an integer number (17543032574256).

Almost surely, 2^{210021111101103} is an apocalyptic number.

210021111101103 is a deficient number, since it is larger than the sum of its proper divisors (70667410086993).

210021111101103 is a wasteful number, since it uses less digits than its factorization.

210021111101103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51417694.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 210021111101103 its reverse (301101111120012), we get a palindrome (511122222221115).

The spelling of 210021111101103 in words is "two hundred ten trillion, twenty-one billion, one hundred eleven million, one hundred one thousand, one hundred three".