123221103330137 has 2 divisors, whose sum is σ = 123221103330138. Its totient is φ = 123221103330136.

The previous prime is 123221103330133. The next prime is 123221103330139. The reversal of 123221103330137 is 731033301122321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121330467330121 + 1890636000016 = 11015011^2 + 1375004^2 .

It is a cyclic number.

It is not a de Polignac number, because 123221103330137 - 2² = 123221103330133 is a prime.

Together with 123221103330139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123221103330133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61610551665068 + 61610551665069.

It is an arithmetic number, because the mean of its divisors is an integer number (61610551665069).

Almost surely, 2^{123221103330137} is an apocalyptic number.

It is an amenable number.

123221103330137 is a deficient number, since it is larger than the sum of its proper divisors (1).

123221103330137 is an equidigital number, since it uses as much as digits as its factorization.

123221103330137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

Adding to 123221103330137 its reverse (731033301122321), we get a palindrome (854254404452458).

The spelling of 123221103330137 in words is "one hundred twenty-three trillion, two hundred twenty-one billion, one hundred three million, three hundred thirty thousand, one hundred thirty-seven".