123103130077 has 2 divisors, whose sum is σ = 123103130078. Its totient is φ = 123103130076.

The previous prime is 123103130063. The next prime is 123103130089. The reversal of 123103130077 is 770031301321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92160209241 + 30942920836 = 303579^2 + 175906^2 .

It is a cyclic number.

It is not a de Polignac number, because 123103130077 - 2¹⁵ = 123103097309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123103130057) 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, 61551565038 + 61551565039.

It is an arithmetic number, because the mean of its divisors is an integer number (61551565039).

Almost surely, 2^123103130077 is an apocalyptic number.

It is an amenable number.

123103130077 is a deficient number, since it is larger than the sum of its proper divisors (1).

123103130077 is an equidigital number, since it uses as much as digits as its factorization.

123103130077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 28.

Adding to 123103130077 its reverse (770031301321), we get a palindrome (893134431398).

The spelling of 123103130077 in words is "one hundred twenty-three billion, one hundred three million, one hundred thirty thousand, seventy-seven".