100000500001009 has 2 divisors, whose sum is σ = 100000500001010. Its totient is φ = 100000500001008.

The previous prime is 100000500000977. The next prime is 100000500001021. The reversal of 100000500001009 is 900100005000001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97712928450225 + 2287571550784 = 9884985^2 + 1512472^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000500001009 - 2⁵ = 100000500000977 is a prime.

It is a super-4 number, since 4×100000500001009⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100000500000983 and 100000500001001.

It is not a weakly prime, because it can be changed into another prime (100000500001069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000250000504 + 50000250000505.

It is an arithmetic number, because the mean of its divisors is an integer number (50000250000505).

Almost surely, 2^{100000500001009} is an apocalyptic number.

It is an amenable number.

100000500001009 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000500001009 is an equidigital number, since it uses as much as digits as its factorization.

100000500001009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 16.

The spelling of 100000500001009 in words is "one hundred trillion, five hundred million, one thousand, nine".