1002000112020 has 96 divisors (see below), whose sum is σ = 3300706281600. Its totient is φ = 251482378752.

The previous prime is 1002000111989. The next prime is 1002000112021. The reversal of 1002000112020 is 202110002001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1002000111993 and 1002000112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002000112021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54565990 + ... + 54584349.

It is an arithmetic number, because the mean of its divisors is an integer number (34382357100).

Almost surely, 2^{1002000112020} is an apocalyptic number.

1002000112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002000112020 is an abundant number, since it is smaller than the sum of its proper divisors (2298706169580).

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

1002000112020 is a wasteful number, since it uses less digits than its factorization.

1002000112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109150374 (or 109150366 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1002000112020 its reverse (202110002001), we get a palindrome (1204110114021).

The spelling of 1002000112020 in words is "one trillion, two billion, one hundred twelve thousand, twenty".