11205112311 has 12 divisors (see below), whose sum is σ = 16231542600. Its totient is φ = 7448668560.

The previous prime is 11205112253. The next prime is 11205112333. The reversal of 11205112311 is 11321150211.

11205112311 is a `hidden beast` number, since 1 + 120 + 511 + 2 + 31 + 1 = 666.

It is not a de Polignac number, because 11205112311 - 2¹⁰ = 11205111287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205112351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1780545 + ... + 1786826.

It is an arithmetic number, because the mean of its divisors is an integer number (1352628550).

Almost surely, 2^11205112311 is an apocalyptic number.

11205112311 is a deficient number, since it is larger than the sum of its proper divisors (5026430289).

11205112311 is a wasteful number, since it uses less digits than its factorization.

11205112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567726 (or 3567723 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

Adding to 11205112311 its reverse (11321150211), we get a palindrome (22526262522).

The spelling of 11205112311 in words is "eleven billion, two hundred five million, one hundred twelve thousand, three hundred eleven".