13123113110203 has 2 divisors, whose sum is σ = 13123113110204. Its totient is φ = 13123113110202.

The previous prime is 13123113110201. The next prime is 13123113110209. The reversal of 13123113110203 is 30201131132131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13123113110203 - 2¹ = 13123113110201 is a prime.

Together with 13123113110201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13123113110201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561556555101 + 6561556555102.

It is an arithmetic number, because the mean of its divisors is an integer number (6561556555102).

Almost surely, 2^{13123113110203} is an apocalyptic number.

13123113110203 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123113110203 is an equidigital number, since it uses as much as digits as its factorization.

13123113110203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 13123113110203 its reverse (30201131132131), we get a palindrome (43324244242334).

The spelling of 13123113110203 in words is "thirteen trillion, one hundred twenty-three billion, one hundred thirteen million, one hundred ten thousand, two hundred three".