12040423411 has 4 divisors (see below), whose sum is σ = 12205360792. Its totient is φ = 11875486032.

The previous prime is 12040423393. The next prime is 12040423427. The reversal of 12040423411 is 11432404021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11432404021 = 113 ⋅101171717.

It is a cyclic number.

It is not a de Polignac number, because 12040423411 - 2⁹ = 12040422899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12040423441) 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, 82468581 + ... + 82468726.

It is an arithmetic number, because the mean of its divisors is an integer number (3051340198).

Almost surely, 2^12040423411 is an apocalyptic number.

12040423411 is a deficient number, since it is larger than the sum of its proper divisors (164937381).

12040423411 is an equidigital number, since it uses as much as digits as its factorization.

12040423411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164937380.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12040423411 its reverse (11432404021), we get a palindrome (23472827432).

The spelling of 12040423411 in words is "twelve billion, forty million, four hundred twenty-three thousand, four hundred eleven".