11212543368 has 64 divisors (see below), whose sum is σ = 33541804800. Its totient is φ = 3450012480.

The previous prime is 11212543367. The next prime is 11212543373. The reversal of 11212543368 is 86334521211.

11212543368 is a `hidden beast` number, since 1 + 1 + 212 + 5 + 433 + 6 + 8 = 666.

It is a super-2 number, since 2×11212543368² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11212543367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1993728 + ... + 1999343.

It is an arithmetic number, because the mean of its divisors is an integer number (524090700).

Almost surely, 2^11212543368 is an apocalyptic number.

11212543368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11212543368 is an abundant number, since it is smaller than the sum of its proper divisors (22329261432).

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

11212543368 is a wasteful number, since it uses less digits than its factorization.

11212543368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993099 (or 3993089 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 11212543368 in words is "eleven billion, two hundred twelve million, five hundred forty-three thousand, three hundred sixty-eight".