21330124441399 has 2 divisors, whose sum is σ = 21330124441400. Its totient is φ = 21330124441398.

The previous prime is 21330124441391. The next prime is 21330124441517. The reversal of 21330124441399 is 99314442103312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21330124441399 - 2³ = 21330124441391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21330124441391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665062220699 + 10665062220700.

It is an arithmetic number, because the mean of its divisors is an integer number (10665062220700).

Almost surely, 2^{21330124441399} is an apocalyptic number.

21330124441399 is a deficient number, since it is larger than the sum of its proper divisors (1).

21330124441399 is an equidigital number, since it uses as much as digits as its factorization.

21330124441399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 21330124441399 in words is "twenty-one trillion, three hundred thirty billion, one hundred twenty-four million, four hundred forty-one thousand, three hundred ninety-nine".