101010099999881 has 2 divisors, whose sum is σ = 101010099999882. Its totient is φ = 101010099999880.

The previous prime is 101010099999871. The next prime is 101010099999947. The reversal of 101010099999881 is 188999990010101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91073047968400 + 9937052031481 = 9543220^2 + 3152309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101010099999881 is a prime.

It is a super-2 number, since 2×101010099999881² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101010099999871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505049999940 + 50505049999941.

It is an arithmetic number, because the mean of its divisors is an integer number (50505049999941).

Almost surely, 2^{101010099999881} is an apocalyptic number.

It is an amenable number.

101010099999881 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010099999881 is an equidigital number, since it uses as much as digits as its factorization.

101010099999881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 65.

The spelling of 101010099999881 in words is "one hundred one trillion, ten billion, ninety-nine million, nine hundred ninety-nine thousand, eight hundred eighty-one".