21321102000007 has 2 divisors, whose sum is σ = 21321102000008. Its totient is φ = 21321102000006.

The previous prime is 21321101999999. The next prime is 21321102000061. The reversal of 21321102000007 is 70000020112312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21321102000007 - 2³ = 21321101999999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21321102000707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660551000003 + 10660551000004.

It is an arithmetic number, because the mean of its divisors is an integer number (10660551000004).

Almost surely, 2^{21321102000007} is an apocalyptic number.

21321102000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21321102000007 is an equidigital number, since it uses as much as digits as its factorization.

21321102000007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 21321102000007 its reverse (70000020112312), we get a palindrome (91321122112319).

The spelling of 21321102000007 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred two million, seven", and thus it is an aban number.