12434342311 has 4 divisors (see below), whose sum is σ = 13088781400. Its totient is φ = 11779903224.

The previous prime is 12434342287. The next prime is 12434342329. The reversal of 12434342311 is 11324343421.

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: 11324343421 = 53 ⋅213666857.

It is a cyclic number.

It is not a de Polignac number, because 12434342311 - 2¹⁵ = 12434309543 is a prime.

It is a super-2 number, since 2×12434342311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12434342311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434346311) 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, 327219516 + ... + 327219553.

It is an arithmetic number, because the mean of its divisors is an integer number (3272195350).

Almost surely, 2^12434342311 is an apocalyptic number.

12434342311 is a deficient number, since it is larger than the sum of its proper divisors (654439089).

12434342311 is an equidigital number, since it uses as much as digits as its factorization.

12434342311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654439088.

The product of its digits is 6912, while the sum is 28.

Adding to 12434342311 its reverse (11324343421), we get a palindrome (23758685732).

The spelling of 12434342311 in words is "twelve billion, four hundred thirty-four million, three hundred forty-two thousand, three hundred eleven".