20213021011103 has 16 divisors (see below), whose sum is σ = 20530033459200. Its totient is φ = 19897554842880.

The previous prime is 20213021011067. The next prime is 20213021011123. The reversal of 20213021011103 is 30111012031202.

It is a cyclic number.

It is not a de Polignac number, because 20213021011103 - 2⁶ = 20213021011039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213021011123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192674618 + ... + 192779496.

It is an arithmetic number, because the mean of its divisors is an integer number (1283127091200).

Almost surely, 2^{20213021011103} is an apocalyptic number.

20213021011103 is a deficient number, since it is larger than the sum of its proper divisors (317012448097).

20213021011103 is a wasteful number, since it uses less digits than its factorization.

20213021011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112222.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20213021011103 its reverse (30111012031202), we get a palindrome (50324033042305).

The spelling of 20213021011103 in words is "twenty trillion, two hundred thirteen billion, twenty-one million, eleven thousand, one hundred three".