12134042243 has 16 divisors (see below), whose sum is σ = 12356984640. Its totient is φ = 11913523200.

The previous prime is 12134042233. The next prime is 12134042273. The reversal of 12134042243 is 34224043121.

It is a cyclic number.

It is not a de Polignac number, because 12134042243 - 2⁸ = 12134041987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12134042203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7269413 + ... + 7271081.

It is an arithmetic number, because the mean of its divisors is an integer number (772311540).

Almost surely, 2^12134042243 is an apocalyptic number.

12134042243 is a deficient number, since it is larger than the sum of its proper divisors (222942397).

12134042243 is a wasteful number, since it uses less digits than its factorization.

12134042243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12134042243 its reverse (34224043121), we get a palindrome (46358085364).

The spelling of 12134042243 in words is "twelve billion, one hundred thirty-four million, forty-two thousand, two hundred forty-three".