230287031 has 4 divisors (see below), whose sum is σ = 248001432. Its totient is φ = 212572632.

The previous prime is 230287027. The next prime is 230287039. The reversal of 230287031 is 130782032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230287031 - 2² = 230287027 is a prime.

It is a super-2 number, since 2×230287031² = 106064233293589922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230287039) 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 3 ways as a sum of consecutive naturals, for example, 8857181 + ... + 8857206.

It is an arithmetic number, because the mean of its divisors is an integer number (62000358).

Almost surely, 2^230287031 is an apocalyptic number.

230287031 is a deficient number, since it is larger than the sum of its proper divisors (17714401).

230287031 is a wasteful number, since it uses less digits than its factorization.

230287031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17714400.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 230287031 is about 15175.2110693723. The cubic root of 230287031 is about 612.9473336893.

The spelling of 230287031 in words is "two hundred thirty million, two hundred eighty-seven thousand, thirty-one".