20002120111003 has 8 divisors (see below), whose sum is σ = 21063377219600. Its totient is φ = 18941714396928.

The previous prime is 20002120110983. The next prime is 20002120111021. The reversal of 20002120111003 is 30011102120002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20002120111003 - 2⁵ = 20002120110971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002120117003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212800398 + ... + 212894371.

It is an arithmetic number, because the mean of its divisors is an integer number (2632922152450).

Almost surely, 2^{20002120111003} is an apocalyptic number.

20002120111003 is a deficient number, since it is larger than the sum of its proper divisors (1061257108597).

20002120111003 is a wasteful number, since it uses less digits than its factorization.

20002120111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425697261.

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

Adding to 20002120111003 its reverse (30011102120002), we get a palindrome (50013222231005).

The spelling of 20002120111003 in words is "twenty trillion, two billion, one hundred twenty million, one hundred eleven thousand, three".