230136211 has 2 divisors, whose sum is σ = 230136212. Its totient is φ = 230136210.

The previous prime is 230136173. The next prime is 230136217. The reversal of 230136211 is 112631032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230136211 - 2¹⁵ = 230103443 is a prime.

It is a super-2 number, since 2×230136211² = 105925351226873042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230136217) 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, 115068105 + 115068106.

It is an arithmetic number, because the mean of its divisors is an integer number (115068106).

Almost surely, 2^230136211 is an apocalyptic number.

230136211 is a deficient number, since it is larger than the sum of its proper divisors (1).

230136211 is an equidigital number, since it uses as much as digits as its factorization.

230136211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 230136211 is about 15170.2409671040. The cubic root of 230136211 is about 612.8134936069.

Adding to 230136211 its reverse (112631032), we get a palindrome (342767243).

The spelling of 230136211 in words is "two hundred thirty million, one hundred thirty-six thousand, two hundred eleven".