30442211 has 2 divisors, whose sum is σ = 30442212. Its totient is φ = 30442210.

The previous prime is 30442201. The next prime is 30442219. The reversal of 30442211 is 11224403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30442211 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30442211.

It is not a weakly prime, because it can be changed into another prime (30442219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15221105 + 15221106.

It is an arithmetic number, because the mean of its divisors is an integer number (15221106).

Almost surely, 2^30442211 is an apocalyptic number.

30442211 is a deficient number, since it is larger than the sum of its proper divisors (1).

30442211 is an equidigital number, since it uses as much as digits as its factorization.

30442211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 30442211 is about 5517.4460577336. The cubic root of 30442211 is about 312.2425348156.

Adding to 30442211 its reverse (11224403), we get a palindrome (41666614).

The spelling of 30442211 in words is "thirty million, four hundred forty-two thousand, two hundred eleven".