100528282781 has 2 divisors, whose sum is σ = 100528282782. Its totient is φ = 100528282780.

The previous prime is 100528282759. The next prime is 100528282787. The reversal of 100528282781 is 187282825001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73913296900 + 26614985881 = 271870^2 + 163141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100528282781 is a prime.

It is a super-2 number, since 2×100528282781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100528282787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50264141390 + 50264141391.

It is an arithmetic number, because the mean of its divisors is an integer number (50264141391).

Almost surely, 2^100528282781 is an apocalyptic number.

It is an amenable number.

100528282781 is a deficient number, since it is larger than the sum of its proper divisors (1).

100528282781 is an equidigital number, since it uses as much as digits as its factorization.

100528282781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 44.

The spelling of 100528282781 in words is "one hundred billion, five hundred twenty-eight million, two hundred eighty-two thousand, seven hundred eighty-one".