13128822032 has 10 divisors (see below), whose sum is σ = 25437092718. Its totient is φ = 6564411008.

The previous prime is 13128821957. The next prime is 13128822041. The reversal of 13128822032 is 23022882131.

It can be written as a sum of positive squares in only one way, i.e., 13115746576 + 13075456 = 114524^2 + 3616^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13128822032.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410275673 + ... + 410275704.

Almost surely, 2^13128822032 is an apocalyptic number.

It is an amenable number.

13128822032 is a deficient number, since it is larger than the sum of its proper divisors (12308270686).

13128822032 is an equidigital number, since it uses as much as digits as its factorization.

13128822032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820551385 (or 820551379 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 13128822032 in words is "thirteen billion, one hundred twenty-eight million, eight hundred twenty-two thousand, thirty-two".