13130121123 has 12 divisors (see below), whose sum is σ = 21675120688. Its totient is φ = 7502926320.

The previous prime is 13130121091. The next prime is 13130121131. The reversal of 13130121123 is 32112103131.

13130121123 is a `hidden beast` number, since 131 + 301 + 211 + 23 = 666.

It is not a de Polignac number, because 13130121123 - 2⁵ = 13130121091 is a prime.

It is a super-2 number, since 2×13130121123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13130121096 and 13130121105.

It is not an unprimeable number, because it can be changed into a prime (13130121023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104207248 + ... + 104207373.

Almost surely, 2^13130121123 is an apocalyptic number.

13130121123 is a deficient number, since it is larger than the sum of its proper divisors (8544999565).

13130121123 is a wasteful number, since it uses less digits than its factorization.

13130121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208414634 (or 208414631 counting only the distinct ones).

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

Adding to 13130121123 its reverse (32112103131), we get a palindrome (45242224254).

The spelling of 13130121123 in words is "thirteen billion, one hundred thirty million, one hundred twenty-one thousand, one hundred twenty-three".