100030020281 has 2 divisors, whose sum is σ = 100030020282. Its totient is φ = 100030020280.

The previous prime is 100030020193. The next prime is 100030020283. The reversal of 100030020281 is 182020030001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93278933056 + 6751087225 = 305416^2 + 82165^2 .

It is a cyclic number.

It is not a de Polignac number, because 100030020281 - 2¹⁴ = 100030003897 is a prime.

It is a super-2 number, since 2×100030020281² (a number of 23 digits) contains 22 as substring.

Together with 100030020283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100030020283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50015010140 + 50015010141.

It is an arithmetic number, because the mean of its divisors is an integer number (50015010141).

Almost surely, 2^100030020281 is an apocalyptic number.

It is an amenable number.

100030020281 is a deficient number, since it is larger than the sum of its proper divisors (1).

100030020281 is an equidigital number, since it uses as much as digits as its factorization.

100030020281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 100030020281 its reverse (182020030001), we get a palindrome (282050050282).

The spelling of 100030020281 in words is "one hundred billion, thirty million, twenty thousand, two hundred eighty-one".