13123112133011 has 4 divisors (see below), whose sum is σ = 13123388299632. Its totient is φ = 13122835966392.

The previous prime is 13123112132987. The next prime is 13123112133017. The reversal of 13123112133011 is 11033121132131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123112133011 is a prime.

It is a super-2 number, since 2×13123112133011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123112133017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138012020 + ... + 138107073.

It is an arithmetic number, because the mean of its divisors is an integer number (3280847074908).

Almost surely, 2^{13123112133011} is an apocalyptic number.

13123112133011 is a deficient number, since it is larger than the sum of its proper divisors (276166621).

13123112133011 is an equidigital number, since it uses as much as digits as its factorization.

13123112133011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276166620.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 13123112133011 its reverse (11033121132131), we get a palindrome (24156233265142).

The spelling of 13123112133011 in words is "thirteen trillion, one hundred twenty-three billion, one hundred twelve million, one hundred thirty-three thousand, eleven".