230212511 has 2 divisors, whose sum is σ = 230212512. Its totient is φ = 230212510.

The previous prime is 230212441. The next prime is 230212517. The reversal of 230212511 is 115212032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230212511 - 2²² = 226018207 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230212511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230212517) 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, 115106255 + 115106256.

It is an arithmetic number, because the mean of its divisors is an integer number (115106256).

Almost surely, 2^230212511 is an apocalyptic number.

230212511 is a deficient number, since it is larger than the sum of its proper divisors (1).

230212511 is an equidigital number, since it uses as much as digits as its factorization.

230212511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 230212511 is about 15172.7555506572. The cubic root of 230212511 is about 612.8812107543.

Adding to 230212511 its reverse (115212032), we get a palindrome (345424543).

The spelling of 230212511 in words is "two hundred thirty million, two hundred twelve thousand, five hundred eleven".