230311328209 has 2 divisors, whose sum is σ = 230311328210. Its totient is φ = 230311328208.

The previous prime is 230311328171. The next prime is 230311328257. The reversal of 230311328209 is 902823113032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226049849809 + 4261478400 = 475447^2 + 65280^2 .

It is a cyclic number.

It is not a de Polignac number, because 230311328209 - 2²¹ = 230309231057 is a prime.

It is not a weakly prime, because it can be changed into another prime (230311328279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115155664104 + 115155664105.

It is an arithmetic number, because the mean of its divisors is an integer number (115155664105).

Almost surely, 2^230311328209 is an apocalyptic number.

It is an amenable number.

230311328209 is a deficient number, since it is larger than the sum of its proper divisors (1).

230311328209 is an equidigital number, since it uses as much as digits as its factorization.

230311328209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 230311328209 in words is "two hundred thirty billion, three hundred eleven million, three hundred twenty-eight thousand, two hundred nine".