3023016021 has 6 divisors (see below), whose sum is σ = 4366578710. Its totient is φ = 2015344008.

The previous prime is 3023016011. The next prime is 3023016079. The reversal of 3023016021 is 1206103203.

3023016021 is a `hidden beast` number, since 30 + 2 + 30 + 1 + 602 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2744292996 + 278723025 = 52386^2 + 16695^2 .

It is not a de Polignac number, because 3023016021 - 2¹⁰ = 3023014997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3023015985 and 3023016003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3023016001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167945326 + ... + 167945343.

Almost surely, 2^3023016021 is an apocalyptic number.

It is an amenable number.

3023016021 is a deficient number, since it is larger than the sum of its proper divisors (1343562689).

3023016021 is a wasteful number, since it uses less digits than its factorization.

3023016021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335890675 (or 335890672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3023016021 is about 54981.9608689978. The cubic root of 3023016021 is about 1445.9284943090.

Adding to 3023016021 its reverse (1206103203), we get a palindrome (4229119224).

The spelling of 3023016021 in words is "three billion, twenty-three million, sixteen thousand, twenty-one".