231398363 has 4 divisors (see below), whose sum is σ = 264455280. Its totient is φ = 198341448.

The previous prime is 231398357. The next prime is 231398417. The reversal of 231398363 is 363893132.

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 231398363 - 2¹⁸ = 231136219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231398963) 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, 16528448 + ... + 16528461.

It is an arithmetic number, because the mean of its divisors is an integer number (66113820).

Almost surely, 2^231398363 is an apocalyptic number.

231398363 is a deficient number, since it is larger than the sum of its proper divisors (33056917).

231398363 is an equidigital number, since it uses as much as digits as its factorization.

231398363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33056916.

The product of its digits is 69984, while the sum is 38.

The square root of 231398363 is about 15211.7836889695. The cubic root of 231398363 is about 613.9317503106.

The spelling of 231398363 in words is "two hundred thirty-one million, three hundred ninety-eight thousand, three hundred sixty-three".