13232221231 has 2 divisors, whose sum is σ = 13232221232. Its totient is φ = 13232221230.

The previous prime is 13232221157. The next prime is 13232221253. The reversal of 13232221231 is 13212223231.

It is an a-pointer prime, because the next prime (13232221253) can be obtained adding 13232221231 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13232221231 is a prime.

It is a super-2 number, since 2×13232221231² (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 (13232221531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6616110615 + 6616110616.

It is an arithmetic number, because the mean of its divisors is an integer number (6616110616).

Almost surely, 2^13232221231 is an apocalyptic number.

13232221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13232221231 is an equidigital number, since it uses as much as digits as its factorization.

13232221231 is an evil number, because the sum of its binary digits is even.

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

Adding to 13232221231 its reverse (13212223231), we get a palindrome (26444444462).

The spelling of 13232221231 in words is "thirteen billion, two hundred thirty-two million, two hundred twenty-one thousand, two hundred thirty-one".