20200002111 has 12 divisors (see below), whose sum is σ = 29966369992. Its totient is φ = 13102703856.

The previous prime is 20200002107. The next prime is 20200002131. The reversal of 20200002111 is 11120000202.

It is not a de Polignac number, because 20200002111 - 2² = 20200002107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200002093 and 20200002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200002131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30330001 + ... + 30330666.

Almost surely, 2^20200002111 is an apocalyptic number.

20200002111 is a deficient number, since it is larger than the sum of its proper divisors (9766367881).

20200002111 is a wasteful number, since it uses less digits than its factorization.

20200002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60660710 (or 60660707 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20200002111 its reverse (11120000202), we get a palindrome (31320002313).

The spelling of 20200002111 in words is "twenty billion, two hundred million, two thousand, one hundred eleven".