2100113013123 has 16 divisors (see below), whose sum is σ = 3112844434560. Its totient is φ = 1399370688648.

The previous prime is 2100113013113. The next prime is 2100113013127. The reversal of 2100113013123 is 3213103110012.

It is not a de Polignac number, because 2100113013123 - 2¹⁰ = 2100113012099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100113013096 and 2100113013105.

It is not an unprimeable number, because it can be changed into a prime (2100113013127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19519065 + ... + 19626362.

It is an arithmetic number, because the mean of its divisors is an integer number (194552777160).

Almost surely, 2^{2100113013123} is an apocalyptic number.

2100113013123 is a deficient number, since it is larger than the sum of its proper divisors (1012731421437).

2100113013123 is a wasteful number, since it uses less digits than its factorization.

2100113013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39147423 (or 39147417 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 2100113013123 its reverse (3213103110012), we get a palindrome (5313216123135).

The spelling of 2100113013123 in words is "two trillion, one hundred billion, one hundred thirteen million, thirteen thousand, one hundred twenty-three".