13131022231 has 2 divisors, whose sum is σ = 13131022232. Its totient is φ = 13131022230.

The previous prime is 13131022217. The next prime is 13131022237. The reversal of 13131022231 is 13222013131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13131022231 - 2⁹ = 13131021719 is a prime.

It is a super-2 number, since 2×13131022231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13131022199 and 13131022208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131022237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565511115 + 6565511116.

It is an arithmetic number, because the mean of its divisors is an integer number (6565511116).

Almost surely, 2^13131022231 is an apocalyptic number.

13131022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131022231 is an equidigital number, since it uses as much as digits as its factorization.

13131022231 is an evil number, because the sum of its binary digits is even.

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

Adding to 13131022231 its reverse (13222013131), we get a palindrome (26353035362).

The spelling of 13131022231 in words is "thirteen billion, one hundred thirty-one million, twenty-two thousand, two hundred thirty-one".