20300111 has 12 divisors (see below), whose sum is σ = 22197168. Its totient is φ = 18555264.

The previous prime is 20300101. The next prime is 20300117. The reversal of 20300111 is 11100302.

It is not a de Polignac number, because 20300111 - 2¹⁴ = 20283727 is a prime.

It is a super-2 number, since 2×20300111² = 824189013224642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300117) 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 11 ways as a sum of consecutive naturals, for example, 18566 + ... + 19628.

It is an arithmetic number, because the mean of its divisors is an integer number (1849764).

Almost surely, 2^20300111 is an apocalyptic number.

20300111 is a deficient number, since it is larger than the sum of its proper divisors (1897057).

20300111 is a wasteful number, since it uses less digits than its factorization.

20300111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 20300111 is about 4505.5644485458. The cubic root of 20300111 is about 272.7927376214.

Adding to 20300111 its reverse (11100302), we get a palindrome (31400413).

The spelling of 20300111 in words is "twenty million, three hundred thousand, one hundred eleven".