21243060180283 has 2 divisors, whose sum is σ = 21243060180284. Its totient is φ = 21243060180282.

The previous prime is 21243060180233. The next prime is 21243060180289. The reversal of 21243060180283 is 38208106034212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21243060180283 - 2³³ = 21234470245691 is a prime.

It is not a weakly prime, because it can be changed into another prime (21243060180289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10621530090141 + 10621530090142.

It is an arithmetic number, because the mean of its divisors is an integer number (10621530090142).

Almost surely, 2^{21243060180283} is an apocalyptic number.

21243060180283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21243060180283 is an equidigital number, since it uses as much as digits as its factorization.

21243060180283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 21243060180283 in words is "twenty-one trillion, two hundred forty-three billion, sixty million, one hundred eighty thousand, two hundred eighty-three".