13031162231 has 8 divisors (see below), whose sum is σ = 13156214400. Its totient is φ = 12906691000.

The previous prime is 13031162219. The next prime is 13031162281. The reversal of 13031162231 is 13226113031.

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 13031162231 - 2¹⁰ = 13031161207 is a prime.

It is a super-2 number, since 2×13031162231² (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 = 13031162197 and 13031162206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031162281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100091 + ... + 189948.

It is an arithmetic number, because the mean of its divisors is an integer number (1644526800).

Almost surely, 2^13031162231 is an apocalyptic number.

13031162231 is a deficient number, since it is larger than the sum of its proper divisors (125052169).

13031162231 is a wasteful number, since it uses less digits than its factorization.

13031162231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290469.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13031162231 its reverse (13226113031), we get a palindrome (26257275262).

The spelling of 13031162231 in words is "thirteen billion, thirty-one million, one hundred sixty-two thousand, two hundred thirty-one".