12011143040 has 64 divisors (see below), whose sum is σ = 30922940160. Its totient is φ = 4434880512.

The previous prime is 12011143033. The next prime is 12011143117. The reversal of 12011143040 is 4034111021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 713504 + ... + 730143.

It is an arithmetic number, because the mean of its divisors is an integer number (483170940).

Almost surely, 2^12011143040 is an apocalyptic number.

12011143040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011143040 is an abundant number, since it is smaller than the sum of its proper divisors (18911797120).

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

12011143040 is a wasteful number, since it uses less digits than its factorization.

12011143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443679 (or 1443667 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12011143040 its reverse (4034111021), we get a palindrome (16045254061).

The spelling of 12011143040 in words is "twelve billion, eleven million, one hundred forty-three thousand, forty".