13122112231 has 8 divisors (see below), whose sum is σ = 13246368624. Its totient is φ = 12997998720.

The previous prime is 13122112189. The next prime is 13122112249. The reversal of 13122112231 is 13221122131.

13122112231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13122112231 - 2¹⁵ = 13122079463 is a prime.

It is a super-2 number, since 2×13122112231² (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 = 13122112199 and 13122112208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153541 + ... + 223201.

It is an arithmetic number, because the mean of its divisors is an integer number (1655796078).

Almost surely, 2^13122112231 is an apocalyptic number.

13122112231 is a deficient number, since it is larger than the sum of its proper divisors (124256393).

13122112231 is a wasteful number, since it uses less digits than its factorization.

13122112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71441.

The product of its digits is 144, while the sum is 19.

Adding to 13122112231 its reverse (13221122131), we get a palindrome (26343234362).

The spelling of 13122112231 in words is "thirteen billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirty-one".