21012333104419 has 2 divisors, whose sum is σ = 21012333104420. Its totient is φ = 21012333104418.

The previous prime is 21012333104417. The next prime is 21012333104453. The reversal of 21012333104419 is 91440133321012.

It is an a-pointer prime, because the next prime (21012333104453) can be obtained adding 21012333104419 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21012333104419 - 2¹ = 21012333104417 is a prime.

It is a super-2 number, since 2×21012333104419² (a number of 27 digits) contains 22 as substring.

Together with 21012333104417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21012333104417) 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, 10506166552209 + 10506166552210.

It is an arithmetic number, because the mean of its divisors is an integer number (10506166552210).

Almost surely, 2^{21012333104419} is an apocalyptic number.

21012333104419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21012333104419 is an equidigital number, since it uses as much as digits as its factorization.

21012333104419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 21012333104419 in words is "twenty-one trillion, twelve billion, three hundred thirty-three million, one hundred four thousand, four hundred nineteen".