12011142040 has 32 divisors (see below), whose sum is σ = 27144143280. Its totient is φ = 4783288192.

The previous prime is 12011142007. The next prime is 12011142083. The reversal of 12011142040 is 4024111021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652327 + ... + 670486.

Almost surely, 2^12011142040 is an apocalyptic number.

12011142040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011142040 is an abundant number, since it is smaller than the sum of its proper divisors (15133001240).

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

12011142040 is a wasteful number, since it uses less digits than its factorization.

12011142040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323051 (or 1323047 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12011142040 its reverse (4024111021), we get a palindrome (16035253061).

The spelling of 12011142040 in words is "twelve billion, eleven million, one hundred forty-two thousand, forty".