21120759059 has 2 divisors, whose sum is σ = 21120759060. Its totient is φ = 21120759058.

The previous prime is 21120759041. The next prime is 21120759061. The reversal of 21120759059 is 95095702112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21120759059 is a prime.

Together with 21120759061, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21120759019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560379529 + 10560379530.

It is an arithmetic number, because the mean of its divisors is an integer number (10560379530).

Almost surely, 2^21120759059 is an apocalyptic number.

21120759059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21120759059 is an equidigital number, since it uses as much as digits as its factorization.

21120759059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 41.

The spelling of 21120759059 in words is "twenty-one billion, one hundred twenty million, seven hundred fifty-nine thousand, fifty-nine".