11231200220111 has 4 divisors (see below), whose sum is σ = 11231237120400. Its totient is φ = 11231163319824.

The previous prime is 11231200220039. The next prime is 11231200220137. The reversal of 11231200220111 is 11102200213211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11231200220111 - 2⁴² = 6833153709007 is a prime.

It is a super-2 number, since 2×11231200220111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11231200220111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231200222111) 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, 17989766 + ... + 18603603.

It is an arithmetic number, because the mean of its divisors is an integer number (2807809280100).

Almost surely, 2^{11231200220111} is an apocalyptic number.

11231200220111 is a deficient number, since it is larger than the sum of its proper divisors (36900289).

11231200220111 is an equidigital number, since it uses as much as digits as its factorization.

11231200220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36900288.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11231200220111 its reverse (11102200213211), we get a palindrome (22333400433322).

The spelling of 11231200220111 in words is "eleven trillion, two hundred thirty-one billion, two hundred million, two hundred twenty thousand, one hundred eleven".