13011112313231 has 8 divisors (see below), whose sum is σ = 13053644123520. Its totient is φ = 12968581479768.

The previous prime is 13011112313183. The next prime is 13011112313273. The reversal of 13011112313231 is 13231321111031.

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 13011112313231 - 2⁶ = 13011112313167 is a prime.

It is a super-2 number, since 2×13011112313231² (a number of 27 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 = 13011112313197 and 13011112313206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011112315231) 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 7 ways as a sum of consecutive naturals, for example, 34496990 + ... + 34872116.

It is an arithmetic number, because the mean of its divisors is an integer number (1631705515440).

Almost surely, 2^{13011112313231} is an apocalyptic number.

13011112313231 is a deficient number, since it is larger than the sum of its proper divisors (42531810289).

13011112313231 is a wasteful number, since it uses less digits than its factorization.

13011112313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488413.

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

Adding to 13011112313231 its reverse (13231321111031), we get a palindrome (26242433424262).

The spelling of 13011112313231 in words is "thirteen trillion, eleven billion, one hundred twelve million, three hundred thirteen thousand, two hundred thirty-one".