231383803 has 4 divisors (see below), whose sum is σ = 264438640. Its totient is φ = 198328968.

The previous prime is 231383791. The next prime is 231383809. The reversal of 231383803 is 308383132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231383803 is a prime.

It is a super-4 number, since 4×231383803⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231383809) 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 3 ways as a sum of consecutive naturals, for example, 16527408 + ... + 16527421.

It is an arithmetic number, because the mean of its divisors is an integer number (66109660).

Almost surely, 2^231383803 is an apocalyptic number.

231383803 is a deficient number, since it is larger than the sum of its proper divisors (33054837).

231383803 is an equidigital number, since it uses as much as digits as its factorization.

231383803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33054836.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 231383803 is about 15211.3051050855. The cubic root of 231383803 is about 613.9188734782.

The spelling of 231383803 in words is "two hundred thirty-one million, three hundred eighty-three thousand, eight hundred three".