20133033281 has 2 divisors, whose sum is σ = 20133033282. Its totient is φ = 20133033280.

The previous prime is 20133033269. The next prime is 20133033293. The reversal of 20133033281 is 18233033102.

It is a balanced prime because it is at equal distance from previous prime (20133033269) and next prime (20133033293).

It can be written as a sum of positive squares in only one way, i.e., 19744746256 + 388287025 = 140516^2 + 19705^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133033281 - 2¹⁸ = 20132771137 is a prime.

It is a super-2 number, since 2×20133033281² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20133033281.

It is not a weakly prime, because it can be changed into another prime (20133038281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066516640 + 10066516641.

It is an arithmetic number, because the mean of its divisors is an integer number (10066516641).

Almost surely, 2^20133033281 is an apocalyptic number.

It is an amenable number.

20133033281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133033281 is an equidigital number, since it uses as much as digits as its factorization.

20133033281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20133033281 its reverse (18233033102), we get a palindrome (38366066383).

The spelling of 20133033281 in words is "twenty billion, one hundred thirty-three million, thirty-three thousand, two hundred eighty-one".