12111131100511 has 8 divisors (see below), whose sum is σ = 12127477371984. Its totient is φ = 12094786584000.

The previous prime is 12111131100503. The next prime is 12111131100583. The reversal of 12111131100511 is 11500113111121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111131100511 - 2³ = 12111131100503 is a prime.

It is a super-2 number, since 2×12111131100511² (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 (12111131100011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13678795 + ... + 14537251.

It is an arithmetic number, because the mean of its divisors is an integer number (1515934671498).

Almost surely, 2^{12111131100511} is an apocalyptic number.

12111131100511 is a deficient number, since it is larger than the sum of its proper divisors (16346271473).

12111131100511 is an equidigital number, since it uses as much as digits as its factorization.

12111131100511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877481.

The product of its (nonzero) digits is 30, while the sum is 19.

Adding to 12111131100511 its reverse (11500113111121), we get a palindrome (23611244211632).

The spelling of 12111131100511 in words is "twelve trillion, one hundred eleven billion, one hundred thirty-one million, one hundred thousand, five hundred eleven".