230871831 has 16 divisors (see below), whose sum is σ = 324720000. Its totient is φ = 145503648.

The previous prime is 230871827. The next prime is 230871841. The reversal of 230871831 is 138178032.

It is not a de Polignac number, because 230871831 - 2² = 230871827 is a prime.

It is a super-2 number, since 2×230871831² = 106603604698585122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230871792 and 230871801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230871841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24385 + ... + 32501.

It is an arithmetic number, because the mean of its divisors is an integer number (20295000).

Almost surely, 2^230871831 is an apocalyptic number.

230871831 is a deficient number, since it is larger than the sum of its proper divisors (93848169).

230871831 is a wasteful number, since it uses less digits than its factorization.

230871831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8638.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 230871831 is about 15194.4671180006. The cubic root of 230871831 is about 613.4657426859.

The spelling of 230871831 in words is "two hundred thirty million, eight hundred seventy-one thousand, eight hundred thirty-one".