123102302137 has 2 divisors, whose sum is σ = 123102302138. Its totient is φ = 123102302136.

The previous prime is 123102302077. The next prime is 123102302143. The reversal of 123102302137 is 731203201321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76801591161 + 46300710976 = 277131^2 + 215176^2 .

It is a cyclic number.

It is not a de Polignac number, because 123102302137 - 2¹⁵ = 123102269369 is a prime.

It is not a weakly prime, because it can be changed into another prime (123102302177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551151068 + 61551151069.

It is an arithmetic number, because the mean of its divisors is an integer number (61551151069).

Almost surely, 2^123102302137 is an apocalyptic number.

It is an amenable number.

123102302137 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102302137 is an equidigital number, since it uses as much as digits as its factorization.

123102302137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 123102302137 its reverse (731203201321), we get a palindrome (854305503458).

The spelling of 123102302137 in words is "one hundred twenty-three billion, one hundred two million, three hundred two thousand, one hundred thirty-seven".