13143223342181 has 2 divisors, whose sum is σ = 13143223342182. Its totient is φ = 13143223342180.

The previous prime is 13143223342169. The next prime is 13143223342189. The reversal of 13143223342181 is 18124332234131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13140559750081 + 2663592100 = 3624991^2 + 51610^2 .

It is a cyclic number.

It is not a de Polignac number, because 13143223342181 - 2⁴² = 8745176831077 is a prime.

It is a super-2 number, since 2×13143223342181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13143223342189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571611671090 + 6571611671091.

It is an arithmetic number, because the mean of its divisors is an integer number (6571611671091).

Almost surely, 2^{13143223342181} is an apocalyptic number.

It is an amenable number.

13143223342181 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143223342181 is an equidigital number, since it uses as much as digits as its factorization.

13143223342181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The spelling of 13143223342181 in words is "thirteen trillion, one hundred forty-three billion, two hundred twenty-three million, three hundred forty-two thousand, one hundred eighty-one".