231300031 has 8 divisors (see below), whose sum is σ = 233326800. Its totient is φ = 229278720.

The previous prime is 231299953. The next prime is 231300049. The reversal of 231300031 is 130003132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231300031 - 2⁷ = 231299903 is a prime.

It is a super-2 number, since 2×231300031² = 106999408681201922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231299984 and 231300020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231300631) 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 7 ways as a sum of consecutive naturals, for example, 163455 + ... + 164863.

It is an arithmetic number, because the mean of its divisors is an integer number (29165850).

Almost surely, 2^231300031 is an apocalyptic number.

231300031 is a deficient number, since it is larger than the sum of its proper divisors (2026769).

231300031 is a wasteful number, since it uses less digits than its factorization.

231300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 231300031 is about 15208.5512459274. The cubic root of 231300031 is about 613.8447752065.

Adding to 231300031 its reverse (130003132), we get a palindrome (361303163).

The spelling of 231300031 in words is "two hundred thirty-one million, three hundred thousand, thirty-one".