101000002101091 has 2 divisors, whose sum is σ = 101000002101092. Its totient is φ = 101000002101090.

The previous prime is 101000002101059. The next prime is 101000002101137. The reversal of 101000002101091 is 190101200000101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101000002101091 - 2⁵ = 101000002101059 is a prime.

It is not a weakly prime, because it can be changed into another prime (101000002101191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500001050545 + 50500001050546.

It is an arithmetic number, because the mean of its divisors is an integer number (50500001050546).

Almost surely, 2^{101000002101091} is an apocalyptic number.

101000002101091 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000002101091 is an equidigital number, since it uses as much as digits as its factorization.

101000002101091 is an evil number, because the sum of its binary digits is even.

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

Adding to 101000002101091 its reverse (190101200000101), we get a palindrome (291101202101192).

The spelling of 101000002101091 in words is "one hundred one trillion, two million, one hundred one thousand, ninety-one".