20230111 has 6 divisors (see below), whose sum is σ = 22236536. Its totient is φ = 18390900.

The previous prime is 20230109. The next prime is 20230121. The reversal of 20230111 is 11103202.

It is not a de Polignac number, because 20230111 - 2¹ = 20230109 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 (20230121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83475 + ... + 83716.

Almost surely, 2^20230111 is an apocalyptic number.

20230111 is a deficient number, since it is larger than the sum of its proper divisors (2006425).

20230111 is a wasteful number, since it uses less digits than its factorization.

20230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167213 (or 167202 counting only the distinct ones).

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

The square root of 20230111 is about 4497.7895682213. The cubic root of 20230111 is about 272.4788233691.

Adding to 20230111 its reverse (11103202), we get a palindrome (31333313).

The spelling of 20230111 in words is "twenty million, two hundred thirty thousand, one hundred eleven".