11304431313231 has 8 divisors (see below), whose sum is σ = 17225800096384. Its totient is φ = 6459675036120.

The previous prime is 11304431313221. The next prime is 11304431313233. The reversal of 11304431313231 is 13231313440311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11304431313231 - 2¹¹ = 11304431311183 is a prime.

It is a super-3 number, since 3×11304431313231³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11304431313233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269153126485 + ... + 269153126526.

It is an arithmetic number, because the mean of its divisors is an integer number (2153225012048).

Almost surely, 2^{11304431313231} is an apocalyptic number.

11304431313231 is a deficient number, since it is larger than the sum of its proper divisors (5921368783153).

11304431313231 is an equidigital number, since it uses as much as digits as its factorization.

11304431313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538306253021.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 11304431313231 its reverse (13231313440311), we get a palindrome (24535744753542).

The spelling of 11304431313231 in words is "eleven trillion, three hundred four billion, four hundred thirty-one million, three hundred thirteen thousand, two hundred thirty-one".