230421511 has 2 divisors, whose sum is σ = 230421512. Its totient is φ = 230421510.

The previous prime is 230421487. The next prime is 230421557. The reversal of 230421511 is 115124032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230421511 - 2⁵ = 230421479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230421011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115210755 + 115210756.

It is an arithmetic number, because the mean of its divisors is an integer number (115210756).

Almost surely, 2^230421511 is an apocalyptic number.

230421511 is a deficient number, since it is larger than the sum of its proper divisors (1).

230421511 is an equidigital number, since it uses as much as digits as its factorization.

230421511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 230421511 is about 15179.6413330487. The cubic root of 230421511 is about 613.0666241200.

Adding to 230421511 its reverse (115124032), we get a palindrome (345545543).

The spelling of 230421511 in words is "two hundred thirty million, four hundred twenty-one thousand, five hundred eleven".