3020032000021 has 4 divisors (see below), whose sum is σ = 3035679834412. Its totient is φ = 3004384165632.

The previous prime is 3020031999983. The next prime is 3020032000067. The reversal of 3020032000021 is 1200002300203.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 356235891025 + 2663796108996 = 596855^2 + 1632114^2 .

It is a cyclic number.

It is not a de Polignac number, because 3020032000021 - 2⁷ = 3020031999893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020031999965 and 3020032000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020032000721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7823916906 + ... + 7823917291.

It is an arithmetic number, because the mean of its divisors is an integer number (758919958603).

Almost surely, 2^{3020032000021} is an apocalyptic number.

It is an amenable number.

3020032000021 is a deficient number, since it is larger than the sum of its proper divisors (15647834391).

3020032000021 is a wasteful number, since it uses less digits than its factorization.

3020032000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15647834390.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 3020032000021 its reverse (1200002300203), we get a palindrome (4220034300224).

The spelling of 3020032000021 in words is "three trillion, twenty billion, thirty-two million, twenty-one", and thus it is an aban number and an uban number.