12111310476 has 144 divisors (see below), whose sum is σ = 33526138464. Its totient is φ = 3671635968.

The previous prime is 12111310451. The next prime is 12111310489. The reversal of 12111310476 is 67401311121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2170426 + ... + 2175998.

It is an arithmetic number, because the mean of its divisors is an integer number (232820406).

Almost surely, 2^12111310476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12111310476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16763069232).

12111310476 is an abundant number, since it is smaller than the sum of its proper divisors (21414827988).

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

12111310476 is a wasteful number, since it uses less digits than its factorization.

12111310476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720 (or 5715 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 12111310476 its reverse (67401311121), we get a palindrome (79512621597).

The spelling of 12111310476 in words is "twelve billion, one hundred eleven million, three hundred ten thousand, four hundred seventy-six".