33481002281 has 2 divisors, whose sum is σ = 33481002282. Its totient is φ = 33481002280.

The previous prime is 33481002271. The next prime is 33481002287. The reversal of 33481002281 is 18220018433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32186154025 + 1294848256 = 179405^2 + 35984^2 .

It is an emirp because it is prime and its reverse (18220018433) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33481002281 is a prime.

It is a super-2 number, since 2×33481002281² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33481002287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16740501140 + 16740501141.

It is an arithmetic number, because the mean of its divisors is an integer number (16740501141).

Almost surely, 2^33481002281 is an apocalyptic number.

It is an amenable number.

33481002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

33481002281 is an equidigital number, since it uses as much as digits as its factorization.

33481002281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 33481002281 in words is "thirty-three billion, four hundred eighty-one million, two thousand, two hundred eighty-one".