13305442820 has 96 divisors (see below), whose sum is σ = 29166963840. Its totient is φ = 5095388160.

The previous prime is 13305442811. The next prime is 13305442859. The reversal of 13305442820 is 2824450331.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7148690 + ... + 7150550.

It is an arithmetic number, because the mean of its divisors is an integer number (303822540).

Almost surely, 2^13305442820 is an apocalyptic number.

13305442820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13305442820 is an abundant number, since it is smaller than the sum of its proper divisors (15861521020).

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

13305442820 is a wasteful number, since it uses less digits than its factorization.

13305442820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 2083 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 13305442820 in words is "thirteen billion, three hundred five million, four hundred forty-two thousand, eight hundred twenty".