30020101 has 4 divisors (see below), whose sum is σ = 30586572. Its totient is φ = 29453632.

The previous prime is 30020051. The next prime is 30020119. The reversal of 30020101 is 10102003.

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 11088900 + 18931201 = 3330^2 + 4351^2 .

It is a cyclic number.

It is not a de Polignac number, because 30020101 - 2⁹ = 30019589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283156 + ... + 283261.

It is an arithmetic number, because the mean of its divisors is an integer number (7646643).

Almost surely, 2^30020101 is an apocalyptic number.

It is an amenable number.

30020101 is a deficient number, since it is larger than the sum of its proper divisors (566471).

30020101 is an equidigital number, since it uses as much as digits as its factorization.

30020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566470.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 30020101 is about 5479.0602296379. The cubic root of 30020101 is about 310.7926334132.

Adding to 30020101 its reverse (10102003), we get a palindrome (40122104).

The spelling of 30020101 in words is "thirty million, twenty thousand, one hundred one".