331344002421043 has 2 divisors, whose sum is σ = 331344002421044. Its totient is φ = 331344002421042.

The previous prime is 331344002420971. The next prime is 331344002421053. The reversal of 331344002421043 is 340124200443133.

It is a strong prime.

It is an emirp because it is prime and its reverse (340124200443133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331344002421043 is a prime.

It is a super-2 number, since 2×331344002421043² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331344002421053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165672001210521 + 165672001210522.

It is an arithmetic number, because the mean of its divisors is an integer number (165672001210522).

Almost surely, 2^{331344002421043} is an apocalyptic number.

331344002421043 is a deficient number, since it is larger than the sum of its proper divisors (1).

331344002421043 is an equidigital number, since it uses as much as digits as its factorization.

331344002421043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 331344002421043 its reverse (340124200443133), we get a palindrome (671468202864176).

The spelling of 331344002421043 in words is "three hundred thirty-one trillion, three hundred forty-four billion, two million, four hundred twenty-one thousand, forty-three".