13020443173 has 2 divisors, whose sum is σ = 13020443174. Its totient is φ = 13020443172.

The previous prime is 13020443141. The next prime is 13020443197. The reversal of 13020443173 is 37134402031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10699419844 + 2321023329 = 103438^2 + 48177^2 .

It is a cyclic number.

It is not a de Polignac number, because 13020443173 - 2⁵ = 13020443141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13020443873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510221586 + 6510221587.

It is an arithmetic number, because the mean of its divisors is an integer number (6510221587).

Almost surely, 2^13020443173 is an apocalyptic number.

It is an amenable number.

13020443173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13020443173 is an equidigital number, since it uses as much as digits as its factorization.

13020443173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 13020443173 in words is "thirteen billion, twenty million, four hundred forty-three thousand, one hundred seventy-three".