12041004040 has 32 divisors (see below), whose sum is σ = 29176280280. Its totient is φ = 4445908992.

The previous prime is 12041004023. The next prime is 12041004047. The reversal of 12041004040 is 4040014021.

It can be written as a sum of positive squares in 4 ways, for example, as 5158974276 + 6882029764 = 71826^2 + 82958^2 .

It is not an unprimeable number, because it can be changed into a prime (12041004047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11577369 + ... + 11578408.

Almost surely, 2^12041004040 is an apocalyptic number.

12041004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12041004040 is an abundant number, since it is smaller than the sum of its proper divisors (17135276240).

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

12041004040 is a wasteful number, since it uses less digits than its factorization.

12041004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23155801 (or 23155797 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12041004040 its reverse (4040014021), we get a palindrome (16081018061).

The spelling of 12041004040 in words is "twelve billion, forty-one million, four thousand, forty".