21000202283 has 2 divisors, whose sum is σ = 21000202284. Its totient is φ = 21000202282.

The previous prime is 21000202259. The next prime is 21000202291. The reversal of 21000202283 is 38220200012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21000202283 - 2¹⁶ = 21000136747 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000202213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500101141 + 10500101142.

It is an arithmetic number, because the mean of its divisors is an integer number (10500101142).

Almost surely, 2^21000202283 is an apocalyptic number.

21000202283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000202283 is an equidigital number, since it uses as much as digits as its factorization.

21000202283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21000202283 its reverse (38220200012), we get a palindrome (59220402295).

The spelling of 21000202283 in words is "twenty-one billion, two hundred two thousand, two hundred eighty-three".