20211111002104 has 48 divisors (see below), whose sum is σ = 41664238126560. Its totient is φ = 9184632124800.

The previous prime is 20211111001979. The next prime is 20211111002141. The reversal of 20211111002104 is 40120011111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1440012 + ... + 6518884.

It is an arithmetic number, because the mean of its divisors is an integer number (868004960970).

Almost surely, 2^{20211111002104} is an apocalyptic number.

It is an amenable number.

20211111002104 is an abundant number, since it is smaller than the sum of its proper divisors (21453127124456).

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

20211111002104 is a wasteful number, since it uses less digits than its factorization.

20211111002104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083012 (or 5082997 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20211111002104 its reverse (40120011111202), we get a palindrome (60331122113306).

The spelling of 20211111002104 in words is "twenty trillion, two hundred eleven billion, one hundred eleven million, two thousand, one hundred four".