312231423404143 has 8 divisors (see below), whose sum is σ = 325819257993216. Its totient is φ = 298644635091000.

The previous prime is 312231423404119. The next prime is 312231423404149. The reversal of 312231423404143 is 341404324132213.

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 312231423404143 - 2²¹ = 312231421306991 is a prime.

It is a super-3 number, since 3×312231423404143³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231423404149) 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, 260959123 + ... + 262152868.

It is an arithmetic number, because the mean of its divisors is an integer number (40727407249152).

Almost surely, 2^{312231423404143} is an apocalyptic number.

312231423404143 is a deficient number, since it is larger than the sum of its proper divisors (13587834589073).

312231423404143 is a wasteful number, since it uses less digits than its factorization.

312231423404143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523137965.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 312231423404143 its reverse (341404324132213), we get a palindrome (653635747536356).

The spelling of 312231423404143 in words is "three hundred twelve trillion, two hundred thirty-one billion, four hundred twenty-three million, four hundred four thousand, one hundred forty-three".