21003311202239 has 2 divisors, whose sum is σ = 21003311202240. Its totient is φ = 21003311202238.

The previous prime is 21003311202229. The next prime is 21003311202241. The reversal of 21003311202239 is 93220211330012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21003311202239 is a prime.

It is a super-2 number, since 2×21003311202239² (a number of 27 digits) contains 22 as substring.

Together with 21003311202241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003311202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501655601119 + 10501655601120.

It is an arithmetic number, because the mean of its divisors is an integer number (10501655601120).

Almost surely, 2^{21003311202239} is an apocalyptic number.

21003311202239 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003311202239 is an equidigital number, since it uses as much as digits as its factorization.

21003311202239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 21003311202239 in words is "twenty-one trillion, three billion, three hundred eleven million, two hundred two thousand, two hundred thirty-nine".