12111276736 has 28 divisors (see below), whose sum is σ = 25882033072. Its totient is φ = 5589819648.

The previous prime is 12111276719. The next prime is 12111276739. The reversal of 12111276736 is 63767211121.

It is a junction number, because it is equal to n+sod(n) for n = 12111276695 and 12111276704.

It is not an unprimeable number, because it can be changed into a prime (12111276739) 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, 7277580 + ... + 7279243.

It is an arithmetic number, because the mean of its divisors is an integer number (924358324).

Almost surely, 2^12111276736 is an apocalyptic number.

12111276736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12111276736 is an abundant number, since it is smaller than the sum of its proper divisors (13770756336).

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

12111276736 is a wasteful number, since it uses less digits than its factorization.

12111276736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556848 (or 14556838 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

Adding to 12111276736 its reverse (63767211121), we get a palindrome (75878487857).

The spelling of 12111276736 in words is "twelve billion, one hundred eleven million, two hundred seventy-six thousand, seven hundred thirty-six".