313240403020243 has 8 divisors (see below), whose sum is σ = 313538722596288. Its totient is φ = 312942149481984.

The previous prime is 313240403020117. The next prime is 313240403020277. The reversal of 313240403020243 is 342020304042313.

It is a happy number.

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 313240403020243 - 2⁴¹ = 311041379764691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313240403000243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7015630 + ... + 25994227.

It is an arithmetic number, because the mean of its divisors is an integer number (39192340324536).

Almost surely, 2^{313240403020243} is an apocalyptic number.

313240403020243 is a deficient number, since it is larger than the sum of its proper divisors (298319576045).

313240403020243 is a wasteful number, since it uses less digits than its factorization.

313240403020243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33018893.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 313240403020243 its reverse (342020304042313), we get a palindrome (655260707062556).

The spelling of 313240403020243 in words is "three hundred thirteen trillion, two hundred forty billion, four hundred three million, twenty thousand, two hundred forty-three".