14127481021 has 2 divisors, whose sum is σ = 14127481022. Its totient is φ = 14127481020.

The previous prime is 14127481019. The next prime is 14127481037. The reversal of 14127481021 is 12018472141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12989160900 + 1138320121 = 113970^2 + 33739^2 .

It is a cyclic number.

It is not a de Polignac number, because 14127481021 - 2¹ = 14127481019 is a prime.

Together with 14127481019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14127482021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7063740510 + 7063740511.

It is an arithmetic number, because the mean of its divisors is an integer number (7063740511).

Almost surely, 2^14127481021 is an apocalyptic number.

It is an amenable number.

14127481021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14127481021 is an equidigital number, since it uses as much as digits as its factorization.

14127481021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 14127481021 in words is "fourteen billion, one hundred twenty-seven million, four hundred eighty-one thousand, twenty-one".