12123102013 has 16 divisors (see below), whose sum is σ = 13378084992. Its totient is φ = 10893960000.

The previous prime is 12123102011. The next prime is 12123102053. The reversal of 12123102013 is 31020132121.

It is not a de Polignac number, because 12123102013 - 2¹ = 12123102011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123102011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692395 + ... + 709687.

It is an arithmetic number, because the mean of its divisors is an integer number (836130312).

Almost surely, 2^12123102013 is an apocalyptic number.

It is an amenable number.

12123102013 is a deficient number, since it is larger than the sum of its proper divisors (1254982979).

12123102013 is a wasteful number, since it uses less digits than its factorization.

12123102013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18036.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12123102013 its reverse (31020132121), we get a palindrome (43143234134).

The spelling of 12123102013 in words is "twelve billion, one hundred twenty-three million, one hundred two thousand, thirteen".