123022222113181 has 2 divisors, whose sum is σ = 123022222113182. Its totient is φ = 123022222113180.

The previous prime is 123022222113137. The next prime is 123022222113229. The reversal of 123022222113181 is 181311222220321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116224031525625 + 6798190587556 = 10780725^2 + 2607334^2 .

It is an emirp because it is prime and its reverse (181311222220321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123022222113181 - 2¹¹ = 123022222111133 is a prime.

It is a super-2 number, since 2×123022222113181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123022222113121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511111056590 + 61511111056591.

It is an arithmetic number, because the mean of its divisors is an integer number (61511111056591).

Almost surely, 2^{123022222113181} is an apocalyptic number.

It is an amenable number.

123022222113181 is a deficient number, since it is larger than the sum of its proper divisors (1).

123022222113181 is an equidigital number, since it uses as much as digits as its factorization.

123022222113181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 123022222113181 in words is "one hundred twenty-three trillion, twenty-two billion, two hundred twenty-two million, one hundred thirteen thousand, one hundred eighty-one".