331213043040443 has 4 divisors (see below), whose sum is σ = 332877430191600. Its totient is φ = 329548655889288.

The previous prime is 331213043040421. The next prime is 331213043040457. The reversal of 331213043040443 is 344040340312133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331213043040443 - 2⁴⁶ = 260844298862779 is a prime.

It is a super-2 number, since 2×331213043040443² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331213043060443) 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, 832193575280 + ... + 832193575677.

It is an arithmetic number, because the mean of its divisors is an integer number (83219357547900).

Almost surely, 2^{331213043040443} is an apocalyptic number.

331213043040443 is a deficient number, since it is larger than the sum of its proper divisors (1664387151157).

331213043040443 is a wasteful number, since it uses less digits than its factorization.

331213043040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664387151156.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 331213043040443 its reverse (344040340312133), we get a palindrome (675253383352576).

The spelling of 331213043040443 in words is "three hundred thirty-one trillion, two hundred thirteen billion, forty-three million, forty thousand, four hundred forty-three".