12040132856 has 32 divisors (see below), whose sum is σ = 22903689600. Its totient is φ = 5932560480.

The previous prime is 12040132813. The next prime is 12040132859. The reversal of 12040132856 is 65823104021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040132859) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1884275 + ... + 1890653.

It is an arithmetic number, because the mean of its divisors is an integer number (715740300).

Almost surely, 2^12040132856 is an apocalyptic number.

It is an amenable number.

12040132856 is a deficient number, since it is larger than the sum of its proper divisors (10863556744).

12040132856 is a wasteful number, since it uses less digits than its factorization.

12040132856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9779 (or 9775 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 12040132856 its reverse (65823104021), we get a palindrome (77863236877).

The spelling of 12040132856 in words is "twelve billion, forty million, one hundred thirty-two thousand, eight hundred fifty-six".