231341403 has 4 divisors (see below), whose sum is σ = 308455208. Its totient is φ = 154227600.

The previous prime is 231341371. The next prime is 231341417. The reversal of 231341403 is 304143132.

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

It is not a de Polignac number, because 231341403 - 2⁵ = 231341371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231341403.

It is not an unprimeable number, because it can be changed into a prime (231341483) 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, 38556898 + ... + 38556903.

It is an arithmetic number, because the mean of its divisors is an integer number (77113802).

Almost surely, 2^231341403 is an apocalyptic number.

231341403 is a deficient number, since it is larger than the sum of its proper divisors (77113805).

231341403 is an equidigital number, since it uses as much as digits as its factorization.

231341403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77113804.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231341403 is about 15209.9113409645. The cubic root of 231341403 is about 613.8813719331.

Adding to 231341403 its reverse (304143132), we get a palindrome (535484535).

The spelling of 231341403 in words is "two hundred thirty-one million, three hundred forty-one thousand, four hundred three".