1320021110020 has 48 divisors (see below), whose sum is σ = 2811526502400. Its totient is φ = 520490355840.

The previous prime is 1320021109993. The next prime is 1320021110033. The reversal of 1320021110020 is 200111200231.

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, 9457501 + ... + 9596059.

It is an arithmetic number, because the mean of its divisors is an integer number (58573468800).

Almost surely, 2^{1320021110020} is an apocalyptic number.

1320021110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320021110020 is an abundant number, since it is smaller than the sum of its proper divisors (1491505392380).

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

1320021110020 is a wasteful number, since it uses less digits than its factorization.

1320021110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145348 (or 145346 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1320021110020 its reverse (200111200231), we get a palindrome (1520132310251).

The spelling of 1320021110020 in words is "one trillion, three hundred twenty billion, twenty-one million, one hundred ten thousand, twenty".