12061313451613 has 4 divisors (see below), whose sum is σ = 12061323122940. Its totient is φ = 12061303780288.

The previous prime is 12061313451589. The next prime is 12061313451683. The reversal of 12061313451613 is 31615431316021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2380117674169 + 9681195777444 = 1542763^2 + 3111462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12061313451613 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 (12061313451683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2629468 + ... + 5571061.

It is an arithmetic number, because the mean of its divisors is an integer number (3015330780735).

Almost surely, 2^{12061313451613} is an apocalyptic number.

It is an amenable number.

12061313451613 is a deficient number, since it is larger than the sum of its proper divisors (9671327).

12061313451613 is an equidigital number, since it uses as much as digits as its factorization.

12061313451613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671326.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 12061313451613 its reverse (31615431316021), we get a palindrome (43676744767634).

The spelling of 12061313451613 in words is "twelve trillion, sixty-one billion, three hundred thirteen million, four hundred fifty-one thousand, six hundred thirteen".