13113022111121 has 4 divisors (see below), whose sum is σ = 13113035353572. Its totient is φ = 13113008868672.

The previous prime is 13113022111117. The next prime is 13113022111141. The reversal of 13113022111121 is 12111122031131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9897316000000 + 3215706111121 = 3146000^2 + 1793239^2 .

It is a cyclic number.

It is not a de Polignac number, because 13113022111121 - 2² = 13113022111117 is a prime.

It is a super-3 number, since 3×13113022111121³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113022111093 and 13113022111102.

It is not an unprimeable number, because it can be changed into a prime (13113022111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5004260 + ... + 7160213.

It is an arithmetic number, because the mean of its divisors is an integer number (3278258838393).

Almost surely, 2^{13113022111121} is an apocalyptic number.

It is an amenable number.

13113022111121 is a deficient number, since it is larger than the sum of its proper divisors (13242451).

13113022111121 is a wasteful number, since it uses less digits than its factorization.

13113022111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13242450.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 13113022111121 its reverse (12111122031131), we get a palindrome (25224144142252).

The spelling of 13113022111121 in words is "thirteen trillion, one hundred thirteen billion, twenty-two million, one hundred eleven thousand, one hundred twenty-one".