2123130333123 has 6 divisors (see below), whose sum is σ = 3066743814524. Its totient is φ = 1415420222076.

The previous prime is 2123130333119. The next prime is 2123130333143. The reversal of 2123130333123 is 3213330313212.

2123130333123 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 1 + 303 + 331 + 23 = 666.

It is not a de Polignac number, because 2123130333123 - 2² = 2123130333119 is a prime.

It is a super-2 number, since 2×2123130333123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123130333143) 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, 117951685165 + ... + 117951685182.

Almost surely, 2^{2123130333123} is an apocalyptic number.

2123130333123 is a deficient number, since it is larger than the sum of its proper divisors (943613481401).

2123130333123 is a wasteful number, since it uses less digits than its factorization.

2123130333123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235903370353 (or 235903370350 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 2123130333123 its reverse (3213330313212), we get a palindrome (5336460646335).

The spelling of 2123130333123 in words is "two trillion, one hundred twenty-three billion, one hundred thirty million, three hundred thirty-three thousand, one hundred twenty-three".