13323321040 has 40 divisors (see below), whose sum is σ = 30988016640. Its totient is φ = 5327385216.

The previous prime is 13323321029. The next prime is 13323321041. The reversal of 13323321040 is 4012332331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323321041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201397 + ... + 259243.

It is an arithmetic number, because the mean of its divisors is an integer number (774700416).

Almost surely, 2^13323321040 is an apocalyptic number.

13323321040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13323321040 is an abundant number, since it is smaller than the sum of its proper divisors (17664695600).

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

13323321040 is a wasteful number, since it uses less digits than its factorization.

13323321040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60739 (or 60733 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13323321040 its reverse (4012332331), we get a palindrome (17335653371).

The spelling of 13323321040 in words is "thirteen billion, three hundred twenty-three million, three hundred twenty-one thousand, forty".