21134145283 has 2 divisors, whose sum is σ = 21134145284. Its totient is φ = 21134145282.

The previous prime is 21134145259. The next prime is 21134145287. The reversal of 21134145283 is 38254143112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21134145283 - 2¹⁷ = 21134014211 is a prime.

It is not a weakly prime, because it can be changed into another prime (21134145287) 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, 10567072641 + 10567072642.

It is an arithmetic number, because the mean of its divisors is an integer number (10567072642).

Almost surely, 2^21134145283 is an apocalyptic number.

21134145283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21134145283 is an equidigital number, since it uses as much as digits as its factorization.

21134145283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 34.

Adding to 21134145283 its reverse (38254143112), we get a palindrome (59388288395).

The spelling of 21134145283 in words is "twenty-one billion, one hundred thirty-four million, one hundred forty-five thousand, two hundred eighty-three".