30228101 has 2 divisors, whose sum is σ = 30228102. Its totient is φ = 30228100.

The previous prime is 30228089. The next prime is 30228103. The reversal of 30228101 is 10182203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24700900 + 5527201 = 4970^2 + 2351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30228101 is a prime.

It is a Sophie Germain prime.

Together with 30228103, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30228101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30228103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15114050 + 15114051.

It is an arithmetic number, because the mean of its divisors is an integer number (15114051).

Almost surely, 2^30228101 is an apocalyptic number.

It is an amenable number.

30228101 is a deficient number, since it is larger than the sum of its proper divisors (1).

30228101 is an equidigital number, since it uses as much as digits as its factorization.

30228101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 30228101 is about 5498.0088213825. The cubic root of 30228101 is about 311.5087773326.

The spelling of 30228101 in words is "thirty million, two hundred twenty-eight thousand, one hundred one".