10123130121523 has 2 divisors, whose sum is σ = 10123130121524. Its totient is φ = 10123130121522.

The previous prime is 10123130121521. The next prime is 10123130121557. The reversal of 10123130121523 is 32512103132101.

It is a weak prime.

It is an emirp because it is prime and its reverse (32512103132101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10123130121523 - 2¹ = 10123130121521 is a prime.

Together with 10123130121521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10123130121521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061565060761 + 5061565060762.

It is an arithmetic number, because the mean of its divisors is an integer number (5061565060762).

Almost surely, 2^{10123130121523} is an apocalyptic number.

10123130121523 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123130121523 is an equidigital number, since it uses as much as digits as its factorization.

10123130121523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 10123130121523 its reverse (32512103132101), we get a palindrome (42635233253624).

The spelling of 10123130121523 in words is "ten trillion, one hundred twenty-three billion, one hundred thirty million, one hundred twenty-one thousand, five hundred twenty-three".