11131231323 has 8 divisors (see below), whose sum is σ = 15157421568. Its totient is φ = 7262930984.

The previous prime is 11131231303. The next prime is 11131231351. The reversal of 11131231323 is 32313213111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11131231323 - 2⁵ = 11131231291 is a prime.

It is a super-2 number, since 2×11131231323² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11131231323.

It is not an unprimeable number, because it can be changed into a prime (11131231303) 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 7 ways as a sum of consecutive naturals, for example, 39472311 + ... + 39472592.

It is an arithmetic number, because the mean of its divisors is an integer number (1894677696).

Almost surely, 2^11131231323 is an apocalyptic number.

11131231323 is a deficient number, since it is larger than the sum of its proper divisors (4026190245).

11131231323 is an equidigital number, since it uses as much as digits as its factorization.

11131231323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78944953.

The product of its digits is 324, while the sum is 21.

Adding to 11131231323 its reverse (32313213111), we get a palindrome (43444444434).

The spelling of 11131231323 in words is "eleven billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred twenty-three".