231334320005 has 4 divisors (see below), whose sum is σ = 277601184012. Its totient is φ = 185067456000.

The previous prime is 231334319987. The next prime is 231334320017. The reversal of 231334320005 is 500023433132.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 155423600644 + 75910719361 = 394238^2 + 275519^2 .

It is not a de Polignac number, because 231334320005 - 2²⁸ = 231065884549 is a prime.

It is a super-2 number, since 2×231334320005² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23133431996 + ... + 23133432005.

It is an arithmetic number, because the mean of its divisors is an integer number (69400296003).

Almost surely, 2^231334320005 is an apocalyptic number.

It is an amenable number.

231334320005 is a deficient number, since it is larger than the sum of its proper divisors (46266864007).

231334320005 is an equidigital number, since it uses as much as digits as its factorization.

231334320005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46266864006.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 231334320005 its reverse (500023433132), we get a palindrome (731357753137).

The spelling of 231334320005 in words is "two hundred thirty-one billion, three hundred thirty-four million, three hundred twenty thousand, five".