30020111 has 4 divisors (see below), whose sum is σ = 32749224. Its totient is φ = 27291000.

The previous prime is 30020051. The next prime is 30020119. The reversal of 30020111 is 11102003.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30020111 - 2⁶ = 30020047 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 (30020119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364540 + ... + 1364561.

It is an arithmetic number, because the mean of its divisors is an integer number (8187306).

Almost surely, 2^30020111 is an apocalyptic number.

30020111 is a deficient number, since it is larger than the sum of its proper divisors (2729113).

30020111 is a wasteful number, since it uses less digits than its factorization.

30020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729112.

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

The square root of 30020111 is about 5479.0611422031. The cubic root of 30020111 is about 310.7926679226.

Adding to 30020111 its reverse (11102003), we get a palindrome (41122114).

The spelling of 30020111 in words is "thirty million, twenty thousand, one hundred eleven".