13120442773 has 2 divisors, whose sum is σ = 13120442774. Its totient is φ = 13120442772.

The previous prime is 13120442737. The next prime is 13120442791. The reversal of 13120442773 is 37724402131.

Together with previous prime (13120442737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12029263684 + 1091179089 = 109678^2 + 33033^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120442773 - 2⁹ = 13120442261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120442173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560221386 + 6560221387.

It is an arithmetic number, because the mean of its divisors is an integer number (6560221387).

Almost surely, 2^13120442773 is an apocalyptic number.

It is an amenable number.

13120442773 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120442773 is an equidigital number, since it uses as much as digits as its factorization.

13120442773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 13120442773 in words is "thirteen billion, one hundred twenty million, four hundred forty-two thousand, seven hundred seventy-three".