12011340434 has 4 divisors (see below), whose sum is σ = 18017010654. Its totient is φ = 6005670216.

The previous prime is 12011340433. The next prime is 12011340449. The reversal of 12011340434 is 43404311021.

12011340434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43404311021 = 16529 ⋅2625949.

It can be written as a sum of positive squares in only one way, i.e., 8408339809 + 3603000625 = 91697^2 + 60025^2 .

It is not an unprimeable number, because it can be changed into a prime (12011340431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002835107 + ... + 3002835110.

Almost surely, 2^12011340434 is an apocalyptic number.

12011340434 is a deficient number, since it is larger than the sum of its proper divisors (6005670220).

12011340434 is an equidigital number, since it uses as much as digits as its factorization.

12011340434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005670219.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12011340434 its reverse (43404311021), we get a palindrome (55415651455).

The spelling of 12011340434 in words is "twelve billion, eleven million, three hundred forty thousand, four hundred thirty-four".