13113043787 has 2 divisors, whose sum is σ = 13113043788. Its totient is φ = 13113043786.

The previous prime is 13113043771. The next prime is 13113043807. The reversal of 13113043787 is 78734031131.

It is a happy number.

13113043787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13113043787 - 2⁴ = 13113043771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13113043787.

It is not a weakly prime, because it can be changed into another prime (13113043717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556521893 + 6556521894.

It is an arithmetic number, because the mean of its divisors is an integer number (6556521894).

Almost surely, 2^13113043787 is an apocalyptic number.

13113043787 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113043787 is an equidigital number, since it uses as much as digits as its factorization.

13113043787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 13113043787 in words is "thirteen billion, one hundred thirteen million, forty-three thousand, seven hundred eighty-seven".