3020021111 has 4 divisors (see below), whose sum is σ = 3124159800. Its totient is φ = 2915882424.

The previous prime is 3020021093. The next prime is 3020021113. The reversal of 3020021111 is 1111200203.

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

It is a cyclic number.

It is not a de Polignac number, because 3020021111 - 2¹⁴ = 3020004727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020021092 and 3020021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020021113) 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 3 ways as a sum of consecutive naturals, for example, 52069301 + ... + 52069358.

It is an arithmetic number, because the mean of its divisors is an integer number (781039950).

Almost surely, 2^3020021111 is an apocalyptic number.

3020021111 is a deficient number, since it is larger than the sum of its proper divisors (104138689).

3020021111 is a wasteful number, since it uses less digits than its factorization.

3020021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104138688.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3020021111 is about 54954.7187327895. The cubic root of 3020021111 is about 1445.4508414706.

Adding to 3020021111 its reverse (1111200203), we get a palindrome (4131221314).

The spelling of 3020021111 in words is "three billion, twenty million, twenty-one thousand, one hundred eleven".