21142313244211 has 2 divisors, whose sum is σ = 21142313244212. Its totient is φ = 21142313244210.

The previous prime is 21142313244197. The next prime is 21142313244251. The reversal of 21142313244211 is 11244231324112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21142313244211 - 2¹⁷ = 21142313113139 is a prime.

It is not a weakly prime, because it can be changed into another prime (21142313244251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10571156622105 + 10571156622106.

It is an arithmetic number, because the mean of its divisors is an integer number (10571156622106).

Almost surely, 2^{21142313244211} is an apocalyptic number.

21142313244211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21142313244211 is an equidigital number, since it uses as much as digits as its factorization.

21142313244211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 31.

Adding to 21142313244211 its reverse (11244231324112), we get a palindrome (32386544568323).

The spelling of 21142313244211 in words is "twenty-one trillion, one hundred forty-two billion, three hundred thirteen million, two hundred forty-four thousand, two hundred eleven".