13120432445 has 8 divisors (see below), whose sum is σ = 16287433560. Its totient is φ = 10134402880.

The previous prime is 13120432411. The next prime is 13120432489. The reversal of 13120432445 is 54423402131.

13120432445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1249924 + 13119182521 = 1118^2 + 114539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13120432445 - 2⁸ = 13120432189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 45242726 + ... + 45243015.

It is an arithmetic number, because the mean of its divisors is an integer number (2035929195).

Almost surely, 2^13120432445 is an apocalyptic number.

It is an amenable number.

13120432445 is a deficient number, since it is larger than the sum of its proper divisors (3167001115).

13120432445 is an equidigital number, since it uses as much as digits as its factorization.

13120432445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90485775.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 13120432445 its reverse (54423402131), we get a palindrome (67543834576).

The spelling of 13120432445 in words is "thirteen billion, one hundred twenty million, four hundred thirty-two thousand, four hundred forty-five".