13044020402 has 16 divisors (see below), whose sum is σ = 22817529600. Its totient is φ = 5590294164.

The previous prime is 13044020401. The next prime is 13044020447. The reversal of 13044020402 is 20402044031.

It is not an unprimeable number, because it can be changed into a prime (13044020401) 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 7 ways as a sum of consecutive naturals, for example, 9506618 + ... + 9507989.

It is an arithmetic number, because the mean of its divisors is an integer number (1426095600).

Almost surely, 2^13044020402 is an apocalyptic number.

13044020402 is a deficient number, since it is larger than the sum of its proper divisors (9773509198).

13044020402 is an equidigital number, since it uses as much as digits as its factorization.

13044020402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19014630 (or 19014616 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 13044020402 its reverse (20402044031), we get a palindrome (33446064433).

The spelling of 13044020402 in words is "thirteen billion, forty-four million, twenty thousand, four hundred two".