230809311 has 16 divisors (see below), whose sum is σ = 344124000. Its totient is φ = 152889984.

The previous prime is 230809277. The next prime is 230809333. The reversal of 230809311 is 113908032.

It is not a de Polignac number, because 230809311 - 2¹⁹ = 230285023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230819311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22986 + ... + 31463.

It is an arithmetic number, because the mean of its divisors is an integer number (21507750).

Almost surely, 2^230809311 is an apocalyptic number.

230809311 is a deficient number, since it is larger than the sum of its proper divisors (113314689).

230809311 is a wasteful number, since it uses less digits than its factorization.

230809311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54615 (or 54609 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 230809311 is about 15192.4096508750. The cubic root of 230809311 is about 613.4103622602.

The spelling of 230809311 in words is "two hundred thirty million, eight hundred nine thousand, three hundred eleven".