11031222102311 has 4 divisors (see below), whose sum is σ = 11680117520112. Its totient is φ = 10382326684512.

The previous prime is 11031222102289. The next prime is 11031222102317. The reversal of 11031222102311 is 11320122213011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031222102311 is a prime.

It is a super-2 number, since 2×11031222102311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031222102317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324447708875 + ... + 324447708908.

It is an arithmetic number, because the mean of its divisors is an integer number (2920029380028).

Almost surely, 2^{11031222102311} is an apocalyptic number.

11031222102311 is a deficient number, since it is larger than the sum of its proper divisors (648895417801).

11031222102311 is an equidigital number, since it uses as much as digits as its factorization.

11031222102311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648895417800.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11031222102311 its reverse (11320122213011), we get a palindrome (22351344315322).

The spelling of 11031222102311 in words is "eleven trillion, thirty-one billion, two hundred twenty-two million, one hundred two thousand, three hundred eleven".