231431003421313 has 4 divisors (see below), whose sum is σ = 231431035868928. Its totient is φ = 231430970973700.

The previous prime is 231431003421301. The next prime is 231431003421329. The reversal of 231431003421313 is 313124300134132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 231431003421313 - 2²⁹ = 231430466550401 is a prime.

It is a super-2 number, since 2×231431003421313² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231431003421383) 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, 344281 + ... + 21516982.

It is an arithmetic number, because the mean of its divisors is an integer number (57857758967232).

Almost surely, 2^{231431003421313} is an apocalyptic number.

It is an amenable number.

231431003421313 is a deficient number, since it is larger than the sum of its proper divisors (32447615).

231431003421313 is a wasteful number, since it uses less digits than its factorization.

231431003421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32447614.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 231431003421313 its reverse (313124300134132), we get a palindrome (544555303555445).

The spelling of 231431003421313 in words is "two hundred thirty-one trillion, four hundred thirty-one billion, three million, four hundred twenty-one thousand, three hundred thirteen".