13011020432 has 10 divisors (see below), whose sum is σ = 25208852118. Its totient is φ = 6505510208.

The previous prime is 13011020417. The next prime is 13011020459. The reversal of 13011020432 is 23402011031.

It can be written as a sum of positive squares in only one way, i.e., 8209084816 + 4801935616 = 90604^2 + 69296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13011020432.

It is an unprimeable number.

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, 406594373 + ... + 406594404.

Almost surely, 2^13011020432 is an apocalyptic number.

It is an amenable number.

13011020432 is a deficient number, since it is larger than the sum of its proper divisors (12197831686).

13011020432 is an equidigital number, since it uses as much as digits as its factorization.

13011020432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813188785 (or 813188779 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13011020432 its reverse (23402011031), we get a palindrome (36413031463).

The spelling of 13011020432 in words is "thirteen billion, eleven million, twenty thousand, four hundred thirty-two".