210101103 has 6 divisors (see below), whose sum is σ = 303479384. Its totient is φ = 140067396.

The previous prime is 210101083. The next prime is 210101123. The reversal of 210101103 is 301101012.

It is an interprime number because it is at equal distance from previous prime (210101083) and next prime (210101123).

It is not a de Polignac number, because 210101103 - 2⁶ = 210101039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 23344567 = 210101103 / (2 + 1 + 0 + 1 + 0 + 1 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11672275 + ... + 11672292.

Almost surely, 2^210101103 is an apocalyptic number.

210101103 is a deficient number, since it is larger than the sum of its proper divisors (93378281).

210101103 is a wasteful number, since it uses less digits than its factorization.

210101103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23344573 (or 23344570 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 210101103 is about 14494.8647113383. The cubic root of 210101103 is about 594.4875685979.

Adding to 210101103 its reverse (301101012), we get a palindrome (511202115).

Subtracting 210101103 from its reverse (301101012), we obtain a palindrome (90999909).

The spelling of 210101103 in words is "two hundred ten million, one hundred one thousand, one hundred three".