30230381 has 2 divisors, whose sum is σ = 30230382. Its totient is φ = 30230380.

The previous prime is 30230339. The next prime is 30230399. The reversal of 30230381 is 18303203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28185481 + 2044900 = 5309^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 30230381 - 2²² = 26036077 is a prime.

It is a super-2 number, since 2×30230381² = 1827751870810322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30230281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115190 + 15115191.

It is an arithmetic number, because the mean of its divisors is an integer number (15115191).

Almost surely, 2^30230381 is an apocalyptic number.

It is an amenable number.

30230381 is a deficient number, since it is larger than the sum of its proper divisors (1).

30230381 is an equidigital number, since it uses as much as digits as its factorization.

30230381 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 30230381 is about 5498.2161652667. The cubic root of 30230381 is about 311.5166091418.

Adding to 30230381 its reverse (18303203), we get a palindrome (48533584).

The spelling of 30230381 in words is "thirty million, two hundred thirty thousand, three hundred eighty-one".