124221063181 has 2 divisors, whose sum is σ = 124221063182. Its totient is φ = 124221063180.

The previous prime is 124221063023. The next prime is 124221063203. The reversal of 124221063181 is 181360122421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124009622500 + 211440681 = 352150^2 + 14541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124221063181 is a prime.

It is a super-2 number, since 2×124221063181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124221063481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62110531590 + 62110531591.

It is an arithmetic number, because the mean of its divisors is an integer number (62110531591).

Almost surely, 2^124221063181 is an apocalyptic number.

It is an amenable number.

124221063181 is a deficient number, since it is larger than the sum of its proper divisors (1).

124221063181 is an equidigital number, since it uses as much as digits as its factorization.

124221063181 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 124221063181 in words is "one hundred twenty-four billion, two hundred twenty-one million, sixty-three thousand, one hundred eighty-one".