20020003111 has 8 divisors (see below), whose sum is σ = 20451904704. Its totient is φ = 19588349280.

The previous prime is 20020003093. The next prime is 20020003121. The reversal of 20020003111 is 11130002002.

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 20020003111 - 2²³ = 20011614503 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 (20020003121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106281 + ... + 226573.

It is an arithmetic number, because the mean of its divisors is an integer number (2556488088).

Almost surely, 2^20020003111 is an apocalyptic number.

20020003111 is a deficient number, since it is larger than the sum of its proper divisors (431901593).

20020003111 is a wasteful number, since it uses less digits than its factorization.

20020003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123881.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20020003111 its reverse (11130002002), we get a palindrome (31150005113).

The spelling of 20020003111 in words is "twenty billion, twenty million, three thousand, one hundred eleven".