12434011111 has 16 divisors (see below), whose sum is σ = 12641580000. Its totient is φ = 12228697728.

The previous prime is 12434011049. The next prime is 12434011153. The reversal of 12434011111 is 11111043421.

It is a cyclic number.

It is not a de Polignac number, because 12434011111 - 2⁷ = 12434010983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434011211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8163396 + ... + 8164918.

It is an arithmetic number, because the mean of its divisors is an integer number (790098750).

Almost surely, 2^12434011111 is an apocalyptic number.

12434011111 is a deficient number, since it is larger than the sum of its proper divisors (207568889).

12434011111 is a wasteful number, since it uses less digits than its factorization.

12434011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12434011111 its reverse (11111043421), we get a palindrome (23545054532).

The spelling of 12434011111 in words is "twelve billion, four hundred thirty-four million, eleven thousand, one hundred eleven".