21104364283 has 2 divisors, whose sum is σ = 21104364284. Its totient is φ = 21104364282.

The previous prime is 21104364223. The next prime is 21104364331. The reversal of 21104364283 is 38246340112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21104364283 is a prime.

It is a super-2 number, since 2×21104364283² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21104364223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10552182141 + 10552182142.

It is an arithmetic number, because the mean of its divisors is an integer number (10552182142).

Almost surely, 2^21104364283 is an apocalyptic number.

21104364283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21104364283 is an equidigital number, since it uses as much as digits as its factorization.

21104364283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 21104364283 in words is "twenty-one billion, one hundred four million, three hundred sixty-four thousand, two hundred eighty-three".