331144141343021 has 2 divisors, whose sum is σ = 331144141343022. Its totient is φ = 331144141343020.

The previous prime is 331144141342939. The next prime is 331144141343047. The reversal of 331144141343021 is 120343141441133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320184141816100 + 10959999526921 = 17893690^2 + 3310589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331144141343021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331144141343621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165572070671510 + 165572070671511.

It is an arithmetic number, because the mean of its divisors is an integer number (165572070671511).

Almost surely, 2^{331144141343021} is an apocalyptic number.

It is an amenable number.

331144141343021 is a deficient number, since it is larger than the sum of its proper divisors (1).

331144141343021 is an equidigital number, since it uses as much as digits as its factorization.

331144141343021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 331144141343021 its reverse (120343141441133), we get a palindrome (451487282784154).

The spelling of 331144141343021 in words is "three hundred thirty-one trillion, one hundred forty-four billion, one hundred forty-one million, three hundred forty-three thousand, twenty-one".