210103112113021 has 16 divisors (see below), whose sum is σ = 217595512330560. Its totient is φ = 202627292116480.

The previous prime is 210103112113019. The next prime is 210103112113039. The reversal of 210103112113021 is 120311211301012.

It is a cyclic number.

It is not a de Polignac number, because 210103112113021 - 2¹ = 210103112113019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210103112113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210103112113121) 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, 142369101 + ... + 143837293.

It is an arithmetic number, because the mean of its divisors is an integer number (13599719520660).

Almost surely, 2^{210103112113021} is an apocalyptic number.

It is an amenable number.

210103112113021 is a deficient number, since it is larger than the sum of its proper divisors (7492400217539).

210103112113021 is a wasteful number, since it uses less digits than its factorization.

210103112113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473836.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 210103112113021 its reverse (120311211301012), we get a palindrome (330414323414033).

The spelling of 210103112113021 in words is "two hundred ten trillion, one hundred three billion, one hundred twelve million, one hundred thirteen thousand, twenty-one".