21012033283 has 2 divisors, whose sum is σ = 21012033284. Its totient is φ = 21012033282.

The previous prime is 21012033281. The next prime is 21012033307. The reversal of 21012033283 is 38233021012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21012033283 - 2¹ = 21012033281 is a prime.

Together with 21012033281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21012033281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506016641 + 10506016642.

It is an arithmetic number, because the mean of its divisors is an integer number (10506016642).

Almost surely, 2^21012033283 is an apocalyptic number.

21012033283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21012033283 is an equidigital number, since it uses as much as digits as its factorization.

21012033283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21012033283 its reverse (38233021012), we get a palindrome (59245054295).

The spelling of 21012033283 in words is "twenty-one billion, twelve million, thirty-three thousand, two hundred eighty-three".