13020203004 has 12 divisors (see below), whose sum is σ = 30380473704. Its totient is φ = 4340067664.

The previous prime is 13020203003. The next prime is 13020203047. The reversal of 13020203004 is 40030202031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020203003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542508447 + ... + 542508470.

It is an arithmetic number, because the mean of its divisors is an integer number (2531706142).

Almost surely, 2^13020203004 is an apocalyptic number.

It is an amenable number.

13020203004 is an abundant number, since it is smaller than the sum of its proper divisors (17360270700).

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

13020203004 is a wasteful number, since it uses less digits than its factorization.

13020203004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085016924 (or 1085016922 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 13020203004 its reverse (40030202031), we get a palindrome (53050405035).

The spelling of 13020203004 in words is "thirteen billion, twenty million, two hundred three thousand, four".