231861303 has 6 divisors (see below), whose sum is σ = 334910784. Its totient is φ = 154574196.

The previous prime is 231861269. The next prime is 231861319. The reversal of 231861303 is 303168132.

It is a happy number.

It is not a de Polignac number, because 231861303 - 2⁹ = 231860791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231861353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12881175 + ... + 12881192.

It is an arithmetic number, because the mean of its divisors is an integer number (55818464).

Almost surely, 2^231861303 is an apocalyptic number.

231861303 is a deficient number, since it is larger than the sum of its proper divisors (103049481).

231861303 is a wasteful number, since it uses less digits than its factorization.

231861303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25762373 (or 25762370 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 231861303 is about 15226.9925789698. The cubic root of 231861303 is about 614.3408921282.

The spelling of 231861303 in words is "two hundred thirty-one million, eight hundred sixty-one thousand, three hundred three".