1001020109101 has 2 divisors, whose sum is σ = 1001020109102. Its totient is φ = 1001020109100.

The previous prime is 1001020109087. The next prime is 1001020109129. The reversal of 1001020109101 is 1019010201001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 965058675876 + 35961433225 = 982374^2 + 189635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001020109101 - 2⁷ = 1001020108973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001020119101) 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, 500510054550 + 500510054551.

It is an arithmetic number, because the mean of its divisors is an integer number (500510054551).

Almost surely, 2^{1001020109101} is an apocalyptic number.

It is an amenable number.

1001020109101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001020109101 is an equidigital number, since it uses as much as digits as its factorization.

1001020109101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 1001020109101 in words is "one trillion, one billion, twenty million, one hundred nine thousand, one hundred one".