13201173040 has 80 divisors (see below), whose sum is σ = 33506784000. Its totient is φ = 4797013760.

The previous prime is 13201172939. The next prime is 13201173049. The reversal of 13201173040 is 4037110231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (13201173049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1462461 + ... + 1471459.

It is an arithmetic number, because the mean of its divisors is an integer number (418834800).

Almost surely, 2^13201173040 is an apocalyptic number.

13201173040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13201173040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16753392000).

13201173040 is an abundant number, since it is smaller than the sum of its proper divisors (20305610960).

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

13201173040 is a wasteful number, since it uses less digits than its factorization.

13201173040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690 (or 10684 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 13201173040 its reverse (4037110231), we get a palindrome (17238283271).

The spelling of 13201173040 in words is "thirteen billion, two hundred one million, one hundred seventy-three thousand, forty".