11231313331 has 12 divisors (see below), whose sum is σ = 12961701552. Its totient is φ = 9533312496.

The previous prime is 11231313283. The next prime is 11231313341. The reversal of 11231313331 is 13331313211.

It is not a de Polignac number, because 11231313331 - 2¹¹ = 11231311283 is a prime.

It is a super-2 number, since 2×11231313331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231313341) 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 11 ways as a sum of consecutive naturals, for example, 1356 + ... + 149881.

It is an arithmetic number, because the mean of its divisors is an integer number (1080141796).

Almost surely, 2^11231313331 is an apocalyptic number.

11231313331 is a deficient number, since it is larger than the sum of its proper divisors (1730388221).

11231313331 is an equidigital number, since it uses as much as digits as its factorization.

11231313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151450 (or 151347 counting only the distinct ones).

The product of its digits is 486, while the sum is 22.

Adding to 11231313331 its reverse (13331313211), we get a palindrome (24562626542).

The spelling of 11231313331 in words is "eleven billion, two hundred thirty-one million, three hundred thirteen thousand, three hundred thirty-one".