230251311 has 6 divisors (see below), whose sum is σ = 332585240. Its totient is φ = 153500868.

The previous prime is 230251309. The next prime is 230251319. The reversal of 230251311 is 113152032.

230251311 is a `hidden beast` number, since 2 + 302 + 51 + 311 = 666.

It is not a de Polignac number, because 230251311 - 2¹ = 230251309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230251319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12791731 + ... + 12791748.

Almost surely, 2^230251311 is an apocalyptic number.

230251311 is a deficient number, since it is larger than the sum of its proper divisors (102333929).

230251311 is a wasteful number, since it uses less digits than its factorization.

230251311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25583485 (or 25583482 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 230251311 is about 15174.0341043508. The cubic root of 230251311 is about 612.9156404718.

It can be divided in two parts, 23025 and 1311, that added together give a square (24336 = 156²).

The spelling of 230251311 in words is "two hundred thirty million, two hundred fifty-one thousand, three hundred eleven".