12113305817819 has 2 divisors, whose sum is σ = 12113305817820. Its totient is φ = 12113305817818.

The previous prime is 12113305817779. The next prime is 12113305817857. The reversal of 12113305817819 is 91871850331121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12113305817819 - 2¹² = 12113305813723 is a prime.

It is a super-2 number, since 2×12113305817819² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12113305817519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056652908909 + 6056652908910.

It is an arithmetic number, because the mean of its divisors is an integer number (6056652908910).

Almost surely, 2^{12113305817819} is an apocalyptic number.

12113305817819 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113305817819 is an equidigital number, since it uses as much as digits as its factorization.

12113305817819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 12113305817819 in words is "twelve trillion, one hundred thirteen billion, three hundred five million, eight hundred seventeen thousand, eight hundred nineteen".