13122232231 has 2 divisors, whose sum is σ = 13122232232. Its totient is φ = 13122232230.

The previous prime is 13122232223. The next prime is 13122232259. The reversal of 13122232231 is 13223222131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13122232231 - 2³ = 13122232223 is a prime.

It is a super-2 number, since 2×13122232231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13122232031) 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 as a sum of consecutive naturals, namely, 6561116115 + 6561116116.

It is an arithmetic number, because the mean of its divisors is an integer number (6561116116).

Almost surely, 2^13122232231 is an apocalyptic number.

13122232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122232231 is an equidigital number, since it uses as much as digits as its factorization.

13122232231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

Adding to 13122232231 its reverse (13223222131), we get a palindrome (26345454362).

The spelling of 13122232231 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty-one".