13243425273 has 48 divisors (see below), whose sum is σ = 21420519120. Its totient is φ = 7828434432.

The previous prime is 13243425241. The next prime is 13243425311. The reversal of 13243425273 is 37252434231.

13243425273 is a `hidden beast` number, since 132 + 434 + 25 + 2 + 73 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 684188649 + 12559236624 = 26157^2 + 112068^2 .

It is not a de Polignac number, because 13243425273 - 2⁵ = 13243425241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13243425073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 658515 + ... + 678327.

It is an arithmetic number, because the mean of its divisors is an integer number (446260815).

Almost surely, 2^13243425273 is an apocalyptic number.

13243425273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13243425273 is a deficient number, since it is larger than the sum of its proper divisors (8177093847).

13243425273 is a wasteful number, since it uses less digits than its factorization.

13243425273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20058 (or 20055 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

It can be divided in two parts, 13243 and 425273, that added together give a triangular number (438516 = T₉₃₆).

The spelling of 13243425273 in words is "thirteen billion, two hundred forty-three million, four hundred twenty-five thousand, two hundred seventy-three".