13043303644 has 12 divisors (see below), whose sum is σ = 26086607344. Its totient is φ = 5589987264.

The previous prime is 13043303627. The next prime is 13043303681. The reversal of 13043303644 is 44630334031.

13043303644 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232916109 + ... + 232916164.

Almost surely, 2^13043303644 is an apocalyptic number.

13043303644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13043303644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13043303644 is a wasteful number, since it uses less digits than its factorization.

13043303644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465832284 (or 465832282 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 13043303644 its reverse (44630334031), we get a palindrome (57673637675).

The spelling of 13043303644 in words is "thirteen billion, forty-three million, three hundred three thousand, six hundred forty-four".