13223321131 has 2 divisors, whose sum is σ = 13223321132. Its totient is φ = 13223321130.

The previous prime is 13223321129. The next prime is 13223321147. The reversal of 13223321131 is 13112332231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13223321131 - 2¹ = 13223321129 is a prime.

It is a super-2 number, since 2×13223321131² (a number of 21 digits) contains 22 as substring.

Together with 13223321129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13223321731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611660565 + 6611660566.

It is an arithmetic number, because the mean of its divisors is an integer number (6611660566).

Almost surely, 2^13223321131 is an apocalyptic number.

13223321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223321131 is an equidigital number, since it uses as much as digits as its factorization.

13223321131 is an evil number, because the sum of its binary digits is even.

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

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

The spelling of 13223321131 in words is "thirteen billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred thirty-one".