13112332231 has 16 divisors (see below), whose sum is σ = 14011200000. Its totient is φ = 12235107456.

The previous prime is 13112332183. The next prime is 13112332243. The reversal of 13112332231 is 13223321131.

It is not a de Polignac number, because 13112332231 - 2⁹ = 13112331719 is a prime.

It is a super-3 number, since 3×13112332231³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112732231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618495 + ... + 639343.

It is an arithmetic number, because the mean of its divisors is an integer number (875700000).

Almost surely, 2^13112332231 is an apocalyptic number.

13112332231 is a deficient number, since it is larger than the sum of its proper divisors (898867769).

13112332231 is a wasteful number, since it uses less digits than its factorization.

13112332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21366.

The product of its digits is 648, while the sum is 22.

Adding to 13112332231 its reverse (13223321131), we get a palindrome (26335653362).

The spelling of 13112332231 in words is "thirteen billion, one hundred twelve million, three hundred thirty-two thousand, two hundred thirty-one".