21311330102339 has 2 divisors, whose sum is σ = 21311330102340. Its totient is φ = 21311330102338.

The previous prime is 21311330102317. The next prime is 21311330102417. The reversal of 21311330102339 is 93320103311312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21311330102339 - 2¹² = 21311330098243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21311360102339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655665051169 + 10655665051170.

It is an arithmetic number, because the mean of its divisors is an integer number (10655665051170).

Almost surely, 2^{21311330102339} is an apocalyptic number.

21311330102339 is a deficient number, since it is larger than the sum of its proper divisors (1).

21311330102339 is an equidigital number, since it uses as much as digits as its factorization.

21311330102339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The spelling of 21311330102339 in words is "twenty-one trillion, three hundred eleven billion, three hundred thirty million, one hundred two thousand, three hundred thirty-nine".