13122013231 has 8 divisors (see below), whose sum is σ = 13339195344. Its totient is φ = 12904897920.

The previous prime is 13122013217. The next prime is 13122013241. The reversal of 13122013231 is 13231022131.

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 13122013231 - 2⁹ = 13122012719 is a prime.

It is a super-2 number, since 2×13122013231² (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 = 13122013199 and 13122013208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122013241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521271 + ... + 545863.

It is an arithmetic number, because the mean of its divisors is an integer number (1667399418).

Almost surely, 2^13122013231 is an apocalyptic number.

13122013231 is a deficient number, since it is larger than the sum of its proper divisors (217182113).

13122013231 is an equidigital number, since it uses as much as digits as its factorization.

13122013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33401.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13122013231 its reverse (13231022131), we get a palindrome (26353035362).

The spelling of 13122013231 in words is "thirteen billion, one hundred twenty-two million, thirteen thousand, two hundred thirty-one".