123103013313 has 16 divisors (see below), whose sum is σ = 187590830976. Its totient is φ = 70342596480.

The previous prime is 123103013237. The next prime is 123103013323. The reversal of 123103013313 is 313310301321.

It is not a de Polignac number, because 123103013313 - 2¹⁰ = 123103012289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 123103013313.

It is not an unprimeable number, because it can be changed into a prime (123103013323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026643 + ... + 1140263.

It is an arithmetic number, because the mean of its divisors is an integer number (11724426936).

Almost surely, 2^123103013313 is an apocalyptic number.

It is an amenable number.

123103013313 is a deficient number, since it is larger than the sum of its proper divisors (64487817663).

123103013313 is a wasteful number, since it uses less digits than its factorization.

123103013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165224.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 123103013313 its reverse (313310301321), we get a palindrome (436413314634).

The spelling of 123103013313 in words is "one hundred twenty-three billion, one hundred three million, thirteen thousand, three hundred thirteen".