21211002330703 has 2 divisors, whose sum is σ = 21211002330704. Its totient is φ = 21211002330702.

The previous prime is 21211002330691. The next prime is 21211002330733. The reversal of 21211002330703 is 30703320011212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21211002330703 - 2⁵ = 21211002330671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21211002330733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605501165351 + 10605501165352.

It is an arithmetic number, because the mean of its divisors is an integer number (10605501165352).

Almost surely, 2^{21211002330703} is an apocalyptic number.

21211002330703 is a deficient number, since it is larger than the sum of its proper divisors (1).

21211002330703 is an equidigital number, since it uses as much as digits as its factorization.

21211002330703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 21211002330703 its reverse (30703320011212), we get a palindrome (51914322341915).

The spelling of 21211002330703 in words is "twenty-one trillion, two hundred eleven billion, two million, three hundred thirty thousand, seven hundred three".