11313221011 has 8 divisors (see below), whose sum is σ = 11482595424. Its totient is φ = 11144125440.

The previous prime is 11313220987. The next prime is 11313221021. The reversal of 11313221011 is 11012231311.

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 a de Polignac number, because none of the positive numbers 2^k-11313221011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11313221021) 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, 12765 + ... + 150961.

It is an arithmetic number, because the mean of its divisors is an integer number (1435324428).

Almost surely, 2^11313221011 is an apocalyptic number.

11313221011 is a deficient number, since it is larger than the sum of its proper divisors (169374413).

11313221011 is a wasteful number, since it uses less digits than its factorization.

11313221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139421.

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

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

It can be divided in two parts, 11313 and 221011, that added together give a square (232324 = 482²).

The spelling of 11313221011 in words is "eleven billion, three hundred thirteen million, two hundred twenty-one thousand, eleven".