123234220061 has 2 divisors, whose sum is σ = 123234220062. Its totient is φ = 123234220060.

The previous prime is 123234219943. The next prime is 123234220079. The reversal of 123234220061 is 160022432321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102980660836 + 20253559225 = 320906^2 + 142315^2 .

It is a cyclic number.

It is not a de Polignac number, because 123234220061 - 2¹⁰ = 123234219037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123234220061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123234220091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61617110030 + 61617110031.

It is an arithmetic number, because the mean of its divisors is an integer number (61617110031).

Almost surely, 2^123234220061 is an apocalyptic number.

It is an amenable number.

123234220061 is a deficient number, since it is larger than the sum of its proper divisors (1).

123234220061 is an equidigital number, since it uses as much as digits as its factorization.

123234220061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 123234220061 its reverse (160022432321), we get a palindrome (283256652382).

The spelling of 123234220061 in words is "one hundred twenty-three billion, two hundred thirty-four million, two hundred twenty thousand, sixty-one".