41530313921 has 2 divisors, whose sum is σ = 41530313922. Its totient is φ = 41530313920.

The previous prime is 41530313843. The next prime is 41530313953. The reversal of 41530313921 is 12931303514.

It is an a-pointer prime, because the next prime (41530313953) can be obtained adding 41530313921 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32774033296 + 8756280625 = 181036^2 + 93575^2 .

It is a cyclic number.

It is not a de Polignac number, because 41530313921 - 2¹⁰ = 41530312897 is a prime.

It is not a weakly prime, because it can be changed into another prime (41530313021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20765156960 + 20765156961.

It is an arithmetic number, because the mean of its divisors is an integer number (20765156961).

Almost surely, 2^41530313921 is an apocalyptic number.

It is an amenable number.

41530313921 is a deficient number, since it is larger than the sum of its proper divisors (1).

41530313921 is an equidigital number, since it uses as much as digits as its factorization.

41530313921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 41530313921 in words is "forty-one billion, five hundred thirty million, three hundred thirteen thousand, nine hundred twenty-one".