123103131301 has 2 divisors, whose sum is σ = 123103131302. Its totient is φ = 123103131300.

The previous prime is 123103131293. The next prime is 123103131329. The reversal of 123103131301 is 103131301321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104863278276 + 18239853025 = 323826^2 + 135055^2 .

It is an emirp because it is prime and its reverse (103131301321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123103131301 - 2³ = 123103131293 is a prime.

It is a super-2 number, since 2×123103131301² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123103131601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551565650 + 61551565651.

It is an arithmetic number, because the mean of its divisors is an integer number (61551565651).

Almost surely, 2^123103131301 is an apocalyptic number.

It is an amenable number.

123103131301 is a deficient number, since it is larger than the sum of its proper divisors (1).

123103131301 is an equidigital number, since it uses as much as digits as its factorization.

123103131301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 123103131301 its reverse (103131301321), we get a palindrome (226234432622).

The spelling of 123103131301 in words is "one hundred twenty-three billion, one hundred three million, one hundred thirty-one thousand, three hundred one".