21833338385071 has 2 divisors, whose sum is σ = 21833338385072. Its totient is φ = 21833338385070.

The previous prime is 21833338385009. The next prime is 21833338385147. The reversal of 21833338385071 is 17058383333812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21833338385071 - 2¹³ = 21833338376879 is a prime.

It is a super-3 number, since 3×21833338385071³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21833338385371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10916669192535 + 10916669192536.

It is an arithmetic number, because the mean of its divisors is an integer number (10916669192536).

Almost surely, 2^{21833338385071} is an apocalyptic number.

21833338385071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21833338385071 is an equidigital number, since it uses as much as digits as its factorization.

21833338385071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 21833338385071 in words is "twenty-one trillion, eight hundred thirty-three billion, three hundred thirty-eight million, three hundred eighty-five thousand, seventy-one".