3020200121 has 8 divisors (see below), whose sum is σ = 3032027784. Its totient is φ = 3008396160.

The previous prime is 3020200111. The next prime is 3020200123. The reversal of 3020200121 is 1210020203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45697600 + 2974502521 = 6760^2 + 54539^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020200121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3020200123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274751 + ... + 285531.

It is an arithmetic number, because the mean of its divisors is an integer number (379003473).

Almost surely, 2^3020200121 is an apocalyptic number.

It is an amenable number.

3020200121 is a deficient number, since it is larger than the sum of its proper divisors (11827663).

3020200121 is a wasteful number, since it uses less digits than its factorization.

3020200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11851.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3020200121 is about 54956.3474131970. The cubic root of 3020200121 is about 1445.4794003264.

Adding to 3020200121 its reverse (1210020203), we get a palindrome (4230220324).

The spelling of 3020200121 in words is "three billion, twenty million, two hundred thousand, one hundred twenty-one".