1320021102020 has 48 divisors (see below), whose sum is σ = 2776001518080. Its totient is φ = 527255030016.

The previous prime is 1320021102011. The next prime is 1320021102041. The reversal of 1320021102020 is 202011200231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1320021101986 and 1320021102004.

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, 84376319 + ... + 84391961.

It is an arithmetic number, because the mean of its divisors is an integer number (57833364960).

Almost surely, 2^{1320021102020} is an apocalyptic number.

1320021102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320021102020 is an abundant number, since it is smaller than the sum of its proper divisors (1455980416060).

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

1320021102020 is a wasteful number, since it uses less digits than its factorization.

1320021102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21404 (or 21402 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1320021102020 its reverse (202011200231), we get a palindrome (1522032302251).

The spelling of 1320021102020 in words is "one trillion, three hundred twenty billion, twenty-one million, one hundred two thousand, twenty".