3020312021 has 8 divisors (see below), whose sum is σ = 3198492864. Its totient is φ = 2842188480.

The previous prime is 3020312017. The next prime is 3020312047. The reversal of 3020312021 is 1202130203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3020312021 - 2² = 3020312017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020311987 and 3020312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020312221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144776 + ... + 164318.

It is an arithmetic number, because the mean of its divisors is an integer number (399811608).

Almost surely, 2^3020312021 is an apocalyptic number.

It is an amenable number.

3020312021 is a deficient number, since it is larger than the sum of its proper divisors (178180843).

3020312021 is a wasteful number, since it uses less digits than its factorization.

3020312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28651.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3020312021 is about 54957.3654845281. The cubic root of 3020312021 is about 1445.4972520295.

Adding to 3020312021 its reverse (1202130203), we get a palindrome (4222442224).

It can be divided in two parts, 30203 and 12021, that added together give a palindrome (42224).

The spelling of 3020312021 in words is "three billion, twenty million, three hundred twelve thousand, twenty-one".