21350481741427 has 2 divisors, whose sum is σ = 21350481741428. Its totient is φ = 21350481741426.

The previous prime is 21350481741319. The next prime is 21350481741437. The reversal of 21350481741427 is 72414718405312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21350481741427 is a prime.

It is not a weakly prime, because it can be changed into another prime (21350481741437) 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, 10675240870713 + 10675240870714.

It is an arithmetic number, because the mean of its divisors is an integer number (10675240870714).

Almost surely, 2^{21350481741427} is an apocalyptic number.

21350481741427 is a deficient number, since it is larger than the sum of its proper divisors (1).

21350481741427 is an equidigital number, since it uses as much as digits as its factorization.

21350481741427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 21350481741427 in words is "twenty-one trillion, three hundred fifty billion, four hundred eighty-one million, seven hundred forty-one thousand, four hundred twenty-seven".