12144851443 has 4 divisors (see below), whose sum is σ = 12145230328. Its totient is φ = 12144472560.

The previous prime is 12144851429. The next prime is 12144851461. The reversal of 12144851443 is 34415844121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34415844121 = 107 ⋅321643403.

It is a cyclic number.

It is not a de Polignac number, because 12144851443 - 2³³ = 3554916851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144851423) 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, 136413 + ... + 207118.

It is an arithmetic number, because the mean of its divisors is an integer number (3036307582).

Almost surely, 2^12144851443 is an apocalyptic number.

12144851443 is a deficient number, since it is larger than the sum of its proper divisors (378885).

12144851443 is an equidigital number, since it uses as much as digits as its factorization.

12144851443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378884.

The product of its digits is 61440, while the sum is 37.

The spelling of 12144851443 in words is "twelve billion, one hundred forty-four million, eight hundred fifty-one thousand, four hundred forty-three".