312253421443 has 4 divisors (see below), whose sum is σ = 312254625688. Its totient is φ = 312252217200.

The previous prime is 312253421413. The next prime is 312253421453. The reversal of 312253421443 is 344124352213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 312253421443 - 2⁹ = 312253420931 is a prime.

It is a super-3 number, since 3×312253421443³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312253421399 and 312253421408.

It is not an unprimeable number, because it can be changed into a prime (312253421413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35346 + ... + 791047.

It is an arithmetic number, because the mean of its divisors is an integer number (78063656422).

Almost surely, 2^312253421443 is an apocalyptic number.

312253421443 is a deficient number, since it is larger than the sum of its proper divisors (1204245).

312253421443 is an equidigital number, since it uses as much as digits as its factorization.

312253421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204244.

The product of its digits is 69120, while the sum is 34.

Adding to 312253421443 its reverse (344124352213), we get a palindrome (656377773656).

The spelling of 312253421443 in words is "three hundred twelve billion, two hundred fifty-three million, four hundred twenty-one thousand, four hundred forty-three".