12013111013 has 8 divisors (see below), whose sum is σ = 12729595032. Its totient is φ = 11297719296.

The previous prime is 12013110997. The next prime is 12013111027. The reversal of 12013111013 is 31011131021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5932542529 + 6080568484 = 77023^2 + 77978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12013111013 - 2⁴ = 12013110997 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 (12013111093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250370 + ... + 294467.

It is an arithmetic number, because the mean of its divisors is an integer number (1591199379).

Almost surely, 2^12013111013 is an apocalyptic number.

It is an amenable number.

12013111013 is a deficient number, since it is larger than the sum of its proper divisors (716484019).

12013111013 is a wasteful number, since it uses less digits than its factorization.

12013111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546151.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 12013111013 its reverse (31011131021), we get a palindrome (43024242034).

The spelling of 12013111013 in words is "twelve billion, thirteen million, one hundred eleven thousand, thirteen".