2100000002103 has 6 divisors (see below), whose sum is σ = 3033333336384. Its totient is φ = 1400000001396.

The previous prime is 2100000002063. The next prime is 2100000002117. The reversal of 2100000002103 is 3012000000012.

It is a happy number.

It is not a de Polignac number, because 2100000002103 - 2⁶ = 2100000002039 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: 233333333567 = 2100000002103 / (2 + 1 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 2 + 1 + 0 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100000002603) 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 5 ways as a sum of consecutive naturals, for example, 116666666775 + ... + 116666666792.

It is an arithmetic number, because the mean of its divisors is an integer number (505555556064).

Almost surely, 2^{2100000002103} is an apocalyptic number.

2100000002103 is a deficient number, since it is larger than the sum of its proper divisors (933333334281).

2100000002103 is a wasteful number, since it uses less digits than its factorization.

2100000002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233333333573 (or 233333333570 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 2100000002103 its reverse (3012000000012), we get a palindrome (5112000002115).

The spelling of 2100000002103 in words is "two trillion, one hundred billion, two thousand, one hundred three".