12755232143 has 4 divisors (see below), whose sum is σ = 13066335408. Its totient is φ = 12444128880.

The previous prime is 12755232103. The next prime is 12755232221. The reversal of 12755232143 is 34123255721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34123255721 = 829 ⋅41161949.

It is a cyclic number.

It is not a de Polignac number, because 12755232143 - 2⁶ = 12755232079 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 (12755232103) 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, 155551571 + ... + 155551652.

It is an arithmetic number, because the mean of its divisors is an integer number (3266583852).

Almost surely, 2^12755232143 is an apocalyptic number.

12755232143 is a deficient number, since it is larger than the sum of its proper divisors (311103265).

12755232143 is an equidigital number, since it uses as much as digits as its factorization.

12755232143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311103264.

The product of its digits is 50400, while the sum is 35.

Adding to 12755232143 its reverse (34123255721), we get a palindrome (46878487864).

The spelling of 12755232143 in words is "twelve billion, seven hundred fifty-five million, two hundred thirty-two thousand, one hundred forty-three".