13031324020 has 48 divisors (see below), whose sum is σ = 32150014848. Its totient is φ = 4374149760.

The previous prime is 13031323967. The next prime is 13031324057. The reversal of 13031324020 is 2042313031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275344 + ... + 2281063.

It is an arithmetic number, because the mean of its divisors is an integer number (669791976).

Almost surely, 2^13031324020 is an apocalyptic number.

13031324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031324020 is an abundant number, since it is smaller than the sum of its proper divisors (19118690828).

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

13031324020 is a wasteful number, since it uses less digits than its factorization.

13031324020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556440 (or 4556438 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13031324020 its reverse (2042313031), we get a palindrome (15073637051).

The spelling of 13031324020 in words is "thirteen billion, thirty-one million, three hundred twenty-four thousand, twenty".