21126003359 has 2 divisors, whose sum is σ = 21126003360. Its totient is φ = 21126003358.

The previous prime is 21126003323. The next prime is 21126003373. The reversal of 21126003359 is 95330062112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21126003359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21126003859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10563001679 + 10563001680.

It is an arithmetic number, because the mean of its divisors is an integer number (10563001680).

Almost surely, 2^21126003359 is an apocalyptic number.

21126003359 is a deficient number, since it is larger than the sum of its proper divisors (1).

21126003359 is an equidigital number, since it uses as much as digits as its factorization.

21126003359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 21126003359 in words is "twenty-one billion, one hundred twenty-six million, three thousand, three hundred fifty-nine".