231421404103 has 4 divisors (see below), whose sum is σ = 231555718888. Its totient is φ = 231287089320.

The previous prime is 231421404083. The next prime is 231421404113. The reversal of 231421404103 is 301404124132.

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-231421404103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231421404113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67154808 + ... + 67158253.

It is an arithmetic number, because the mean of its divisors is an integer number (57888929722).

Almost surely, 2^231421404103 is an apocalyptic number.

231421404103 is a deficient number, since it is larger than the sum of its proper divisors (134314785).

231421404103 is a wasteful number, since it uses less digits than its factorization.

231421404103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134314784.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231421404103 its reverse (301404124132), we get a palindrome (532825528235).

The spelling of 231421404103 in words is "two hundred thirty-one billion, four hundred twenty-one million, four hundred four thousand, one hundred three".