1321304010941 has 2 divisors, whose sum is σ = 1321304010942. Its totient is φ = 1321304010940.

The previous prime is 1321304010911. The next prime is 1321304011121. The reversal of 1321304010941 is 1490104031231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810585105625 + 510718905316 = 900325^2 + 714646^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321304010941 - 2¹⁰ = 1321304009917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321304010911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660652005470 + 660652005471.

It is an arithmetic number, because the mean of its divisors is an integer number (660652005471).

Almost surely, 2^{1321304010941} is an apocalyptic number.

It is an amenable number.

1321304010941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321304010941 is an equidigital number, since it uses as much as digits as its factorization.

1321304010941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1321304010941 in words is "one trillion, three hundred twenty-one billion, three hundred four million, ten thousand, nine hundred forty-one".