2123102120103 has 24 divisors (see below), whose sum is σ = 3109071039360. Its totient is φ = 1395979537680.

The previous prime is 2123102120101. The next prime is 2123102120137. The reversal of 2123102120103 is 3010212013212.

2123102120103 is a `hidden beast` number, since 212 + 310 + 21 + 20 + 103 = 666.

It is not a de Polignac number, because 2123102120103 - 2¹ = 2123102120101 is a prime.

It is a super-2 number, since 2×2123102120103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123102120101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5331643 + ... + 5715996.

It is an arithmetic number, because the mean of its divisors is an integer number (129544626640).

Almost surely, 2^{2123102120103} is an apocalyptic number.

2123102120103 is a deficient number, since it is larger than the sum of its proper divisors (985968919257).

2123102120103 is a wasteful number, since it uses less digits than its factorization.

2123102120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11047939 (or 11047936 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2123102120103 its reverse (3010212013212), we get a palindrome (5133314133315).

The spelling of 2123102120103 in words is "two trillion, one hundred twenty-three billion, one hundred two million, one hundred twenty thousand, one hundred three".