20021023000120 has 32 divisors (see below), whose sum is σ = 45349632648000. Its totient is φ = 7954661484928.

The previous prime is 20021023000093. The next prime is 20021023000133. The reversal of 20021023000120 is 2100032012002.

It is a self number, because there is not a number n which added to its sum of digits gives 20021023000120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679610064 + ... + 1679621983.

It is an arithmetic number, because the mean of its divisors is an integer number (1417176020250).

Almost surely, 2^{20021023000120} is an apocalyptic number.

20021023000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021023000120 is an abundant number, since it is smaller than the sum of its proper divisors (25328609647880).

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

20021023000120 is a wasteful number, since it uses less digits than its factorization.

20021023000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359232207 (or 3359232203 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20021023000120 its reverse (2100032012002), we get a palindrome (22121055012122).

The spelling of 20021023000120 in words is "twenty trillion, twenty-one billion, twenty-three million, one hundred twenty", and thus it is an aban number.