13312020203280 has 120 divisors (see below), whose sum is σ = 45027828867840. Its totient is φ = 3524333379840.

The previous prime is 13312020203257. The next prime is 13312020203281. The reversal of 13312020203280 is 8230202021331.

It is a happy number.

13312020203280 is a `hidden beast` number, since 1 + 3 + 312 + 0 + 2 + 0 + 20 + 328 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (13312020203281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66406816 + ... + 66606975.

It is an arithmetic number, because the mean of its divisors is an integer number (375231907232).

Almost surely, 2^{13312020203280} is an apocalyptic number.

13312020203280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312020203280 is an abundant number, since it is smaller than the sum of its proper divisors (31715808664560).

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

13312020203280 is a wasteful number, since it uses less digits than its factorization.

13312020203280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133013949 (or 133013940 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 13312020203280 in words is "thirteen trillion, three hundred twelve billion, twenty million, two hundred three thousand, two hundred eighty".