11211123343356 has 144 divisors (see below), whose sum is σ = 28811648785920. Its totient is φ = 3675412713600.

The previous prime is 11211123343313. The next prime is 11211123343391. The reversal of 11211123343356 is 65334332111211.

11211123343356 is a `hidden beast` number, since 1 + 1 + 21 + 11 + 233 + 43 + 356 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11211123343356.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 233011830 + ... + 233059938.

Almost surely, 2^{11211123343356} is an apocalyptic number.

It is an amenable number.

11211123343356 is an abundant number, since it is smaller than the sum of its proper divisors (17600525442564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211123343356 is a wasteful number, since it uses less digits than its factorization.

11211123343356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48696 (or 48691 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

Adding to 11211123343356 its reverse (65334332111211), we get a palindrome (76545455454567).

The spelling of 11211123343356 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-three million, three hundred forty-three thousand, three hundred fifty-six".