21320321119 has 2 divisors, whose sum is σ = 21320321120. Its totient is φ = 21320321118.

The previous prime is 21320321117. The next prime is 21320321159. The reversal of 21320321119 is 91112302312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21320321119 - 2¹ = 21320321117 is a prime.

It is a super-3 number, since 3×21320321119³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 21320321117, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21320321093 and 21320321102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21320321111) 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, 10660160559 + 10660160560.

It is an arithmetic number, because the mean of its divisors is an integer number (10660160560).

Almost surely, 2^21320321119 is an apocalyptic number.

21320321119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21320321119 is an equidigital number, since it uses as much as digits as its factorization.

21320321119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 21320321119 in words is "twenty-one billion, three hundred twenty million, three hundred twenty-one thousand, one hundred nineteen".