30233081 has 2 divisors, whose sum is σ = 30233082. Its totient is φ = 30233080.

The previous prime is 30233059. The next prime is 30233083. The reversal of 30233081 is 18033203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25755625 + 4477456 = 5075^2 + 2116^2 .

It is an emirp because it is prime and its reverse (18033203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30233081 is a prime.

It is a super-2 number, since 2×30233081² = 1828078373505122, which contains 22 as substring.

Together with 30233083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30233083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116540 + 15116541.

It is an arithmetic number, because the mean of its divisors is an integer number (15116541).

Almost surely, 2^30233081 is an apocalyptic number.

It is an amenable number.

30233081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30233081 is an equidigital number, since it uses as much as digits as its factorization.

30233081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30233081 is about 5498.4616939650. The cubic root of 30233081 is about 311.5258831434.

Adding to 30233081 its reverse (18033203), we get a palindrome (48266284).

The spelling of 30233081 in words is "thirty million, two hundred thirty-three thousand, eighty-one".