13031343780 has 192 divisors, whose sum is σ = 45055664640. Its totient is φ = 2740432896.

The previous prime is 13031343779. The next prime is 13031343791. The reversal of 13031343780 is 8734313031.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1727056 + ... + 1734584.

It is an arithmetic number, because the mean of its divisors is an integer number (234664920).

Almost surely, 2^13031343780 is an apocalyptic number.

13031343780 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 13031343780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22527832320).

13031343780 is an abundant number, since it is smaller than the sum of its proper divisors (32024320860).

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

13031343780 is a wasteful number, since it uses less digits than its factorization.

13031343780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878 (or 7876 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 13031343780 in words is "thirteen billion, thirty-one million, three hundred forty-three thousand, seven hundred eighty".