21100210300103 has 8 divisors (see below), whose sum is σ = 23018486762496. Its totient is φ = 19181946425400.

The previous prime is 21100210300063. The next prime is 21100210300121. The reversal of 21100210300103 is 30100301200112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21100210300103 - 2¹⁶ = 21100210234567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100210300153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546458 + ... + 6519128.

It is an arithmetic number, because the mean of its divisors is an integer number (2877310845312).

Almost surely, 2^{21100210300103} is an apocalyptic number.

21100210300103 is a deficient number, since it is larger than the sum of its proper divisors (1918276462393).

21100210300103 is a wasteful number, since it uses less digits than its factorization.

21100210300103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293845.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21100210300103 its reverse (30100301200112), we get a palindrome (51200511500215).

Subtracting 21100210300103 from its reverse (30100301200112), we obtain a palindrome (9000090900009).

The spelling of 21100210300103 in words is "twenty-one trillion, one hundred billion, two hundred ten million, three hundred thousand, one hundred three".