12113612513 has 2 divisors, whose sum is σ = 12113612514. Its totient is φ = 12113612512.

The previous prime is 12113612477. The next prime is 12113612549. The reversal of 12113612513 is 31521631121.

It is a balanced prime because it is at equal distance from previous prime (12113612477) and next prime (12113612549).

It can be written as a sum of positive squares in only one way, i.e., 11351410849 + 762201664 = 106543^2 + 27608^2 .

It is a cyclic number.

It is not a de Polignac number, because 12113612513 - 2¹⁸ = 12113350369 is a prime.

It is a super-2 number, since 2×12113612513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12113612713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056806256 + 6056806257.

It is an arithmetic number, because the mean of its divisors is an integer number (6056806257).

Almost surely, 2^12113612513 is an apocalyptic number.

It is an amenable number.

12113612513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113612513 is an equidigital number, since it uses as much as digits as its factorization.

12113612513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The spelling of 12113612513 in words is "twelve billion, one hundred thirteen million, six hundred twelve thousand, five hundred thirteen".