21112302283 has 2 divisors, whose sum is σ = 21112302284. Its totient is φ = 21112302282.

The previous prime is 21112302173. The next prime is 21112302293. The reversal of 21112302283 is 38220321112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21112302283 is a prime.

It is not a weakly prime, because it can be changed into another prime (21112302293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556151141 + 10556151142.

It is an arithmetic number, because the mean of its divisors is an integer number (10556151142).

Almost surely, 2^21112302283 is an apocalyptic number.

21112302283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112302283 is an equidigital number, since it uses as much as digits as its factorization.

21112302283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 21112302283 its reverse (38220321112), we get a palindrome (59332623395).

The spelling of 21112302283 in words is "twenty-one billion, one hundred twelve million, three hundred two thousand, two hundred eighty-three".