312144440143 has 8 divisors (see below), whose sum is σ = 315604579808. Its totient is φ = 308689242624.

The previous prime is 312144440119. The next prime is 312144440171. The reversal of 312144440143 is 341044441213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312144440143 - 2⁹ = 312144439631 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 (312144440183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108446 + ... + 1361227.

It is an arithmetic number, because the mean of its divisors is an integer number (39450572476).

Almost surely, 2^312144440143 is an apocalyptic number.

312144440143 is a deficient number, since it is larger than the sum of its proper divisors (3460139665).

312144440143 is a wasteful number, since it uses less digits than its factorization.

312144440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471073.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 312144440143 its reverse (341044441213), we get a palindrome (653188881356).

The spelling of 312144440143 in words is "three hundred twelve billion, one hundred forty-four million, four hundred forty thousand, one hundred forty-three".