13122001123 has 32 divisors (see below), whose sum is σ = 17790478848. Its totient is φ = 9363340800.

The previous prime is 13122001097. The next prime is 13122001159. The reversal of 13122001123 is 32110022131.

It is not a de Polignac number, because 13122001123 - 2⁵ = 13122001091 is a prime.

It is a super-2 number, since 2×13122001123² (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 = 13122001097 and 13122001106.

It is not an unprimeable number, because it can be changed into a prime (13122001723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87033 + ... + 183898.

It is an arithmetic number, because the mean of its divisors is an integer number (555952464).

Almost surely, 2^13122001123 is an apocalyptic number.

13122001123 is a deficient number, since it is larger than the sum of its proper divisors (4668477725).

13122001123 is a wasteful number, since it uses less digits than its factorization.

13122001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271003.

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

Adding to 13122001123 its reverse (32110022131), we get a palindrome (45232023254).

The spelling of 13122001123 in words is "thirteen billion, one hundred twenty-two million, one thousand, one hundred twenty-three".