2102113123 has 8 divisors (see below), whose sum is σ = 2313509616. Its totient is φ = 1894099200.

The previous prime is 2102113103. The next prime is 2102113151. The reversal of 2102113123 is 3213112012.

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

It is a cyclic number.

It is not a de Polignac number, because 2102113123 - 2¹³ = 2102104931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102113097 and 2102113106.

It is not an unprimeable number, because it can be changed into a prime (2102113103) 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, 844338 + ... + 846823.

It is an arithmetic number, because the mean of its divisors is an integer number (289188702).

Almost surely, 2^2102113123 is an apocalyptic number.

2102113123 is a deficient number, since it is larger than the sum of its proper divisors (211396493).

2102113123 is a wasteful number, since it uses less digits than its factorization.

2102113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691285.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2102113123 is about 45848.8072145830. The cubic root of 2102113123 is about 1281.0085481859.

Adding to 2102113123 its reverse (3213112012), we get a palindrome (5315225135).

The spelling of 2102113123 in words is "two billion, one hundred two million, one hundred thirteen thousand, one hundred twenty-three".