1320131113020 has 72 divisors (see below), whose sum is σ = 4025363247360. Its totient is φ = 350191839360.

The previous prime is 1320131112959. The next prime is 1320131113031. The reversal of 1320131113020 is 203111310231.

1320131113020 is a `hidden beast` number, since 1 + 3 + 201 + 311 + 130 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1320131112984 and 1320131113002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19164735 + ... + 19233494.

It is an arithmetic number, because the mean of its divisors is an integer number (55907822880).

Almost surely, 2^{1320131113020} is an apocalyptic number.

1320131113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320131113020 is an abundant number, since it is smaller than the sum of its proper divisors (2705232134340).

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

1320131113020 is a wasteful number, since it uses less digits than its factorization.

1320131113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38398435 (or 38398430 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1320131113020 its reverse (203111310231), we get a palindrome (1523242423251).

The spelling of 1320131113020 in words is "one trillion, three hundred twenty billion, one hundred thirty-one million, one hundred thirteen thousand, twenty".