21041340059 has 2 divisors, whose sum is σ = 21041340060. Its totient is φ = 21041340058.

The previous prime is 21041340041. The next prime is 21041340091. The reversal of 21041340059 is 95004314012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21041340059 - 2¹⁶ = 21041274523 is a prime.

It is not a weakly prime, because it can be changed into another prime (21041340959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10520670029 + 10520670030.

It is an arithmetic number, because the mean of its divisors is an integer number (10520670030).

Almost surely, 2^21041340059 is an apocalyptic number.

21041340059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21041340059 is an equidigital number, since it uses as much as digits as its factorization.

21041340059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 21041340059 in words is "twenty-one billion, forty-one million, three hundred forty thousand, fifty-nine".