11012231311 has 8 divisors (see below), whose sum is σ = 11049362384. Its totient is φ = 10975124160.

The previous prime is 11012231303. The next prime is 11012231323. The reversal of 11012231311 is 11313221011.

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 11012231311 - 2³ = 11012231303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012231011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677211 + ... + 1683763.

It is an arithmetic number, because the mean of its divisors is an integer number (1381170298).

Almost surely, 2^11012231311 is an apocalyptic number.

11012231311 is a deficient number, since it is larger than the sum of its proper divisors (37131073).

11012231311 is an equidigital number, since it uses as much as digits as its factorization.

11012231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11012231311 its reverse (11313221011), we get a palindrome (22325452322).

The spelling of 11012231311 in words is "eleven billion, twelve million, two hundred thirty-one thousand, three hundred eleven".