21020133033283 has 2 divisors, whose sum is σ = 21020133033284. Its totient is φ = 21020133033282.

The previous prime is 21020133033271. The next prime is 21020133033377. The reversal of 21020133033283 is 38233033102012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21020133033283 is a prime.

It is not a weakly prime, because it can be changed into another prime (21020133033253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510066516641 + 10510066516642.

It is an arithmetic number, because the mean of its divisors is an integer number (10510066516642).

Almost surely, 2^{21020133033283} is an apocalyptic number.

21020133033283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020133033283 is an equidigital number, since it uses as much as digits as its factorization.

21020133033283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 21020133033283 its reverse (38233033102012), we get a palindrome (59253166135295).

The spelling of 21020133033283 in words is "twenty-one trillion, twenty billion, one hundred thirty-three million, thirty-three thousand, two hundred eighty-three".