123050442152221 has 2 divisors, whose sum is σ = 123050442152222. Its totient is φ = 123050442152220.

The previous prime is 123050442152147. The next prime is 123050442152249. The reversal of 123050442152221 is 122251244050321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75196837335321 + 47853604816900 = 8671611^2 + 6917630^2 .

It is a cyclic number.

It is not a de Polignac number, because 123050442152221 - 2⁷ = 123050442152093 is a prime.

It is a super-2 number, since 2×123050442152221² (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 (123050442152321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61525221076110 + 61525221076111.

It is an arithmetic number, because the mean of its divisors is an integer number (61525221076111).

Almost surely, 2^{123050442152221} is an apocalyptic number.

It is an amenable number.

123050442152221 is a deficient number, since it is larger than the sum of its proper divisors (1).

123050442152221 is an equidigital number, since it uses as much as digits as its factorization.

123050442152221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 123050442152221 in words is "one hundred twenty-three trillion, fifty billion, four hundred forty-two million, one hundred fifty-two thousand, two hundred twenty-one".