20104002111 has 8 divisors (see below), whose sum is σ = 27205416064. Its totient is φ = 13202628120.

The previous prime is 20104002109. The next prime is 20104002131. The reversal of 20104002111 is 11120040102.

It is a happy number.

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

It is not a de Polignac number, because 20104002111 - 2¹ = 20104002109 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 (20104002131) 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, 50009755 + ... + 50010156.

It is an arithmetic number, because the mean of its divisors is an integer number (3400677008).

Almost surely, 2^20104002111 is an apocalyptic number.

20104002111 is a deficient number, since it is larger than the sum of its proper divisors (7101413953).

20104002111 is a wasteful number, since it uses less digits than its factorization.

20104002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100019981.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20104002111 its reverse (11120040102), we get a palindrome (31224042213).

The spelling of 20104002111 in words is "twenty billion, one hundred four million, two thousand, one hundred eleven".