101020202111011 has 4 divisors (see below), whose sum is σ = 101031828337000. Its totient is φ = 101008575885024.

The previous prime is 101020202110921. The next prime is 101020202111029. The reversal of 101020202111011 is 110111202020101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101020202111011 is a prime.

It is a super-2 number, since 2×101020202111011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020202110982 and 101020202111000.

It is not an unprimeable number, because it can be changed into a prime (101020202111041) 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 in 3 ways as a sum of consecutive naturals, for example, 5813099961 + ... + 5813117338.

It is an arithmetic number, because the mean of its divisors is an integer number (25257957084250).

Almost surely, 2^{101020202111011} is an apocalyptic number.

101020202111011 is a deficient number, since it is larger than the sum of its proper divisors (11626225989).

101020202111011 is an equidigital number, since it uses as much as digits as its factorization.

101020202111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11626225988.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101020202111011 its reverse (110111202020101), we get a palindrome (211131404131112).

The spelling of 101020202111011 in words is "one hundred one trillion, twenty billion, two hundred two million, one hundred eleven thousand, eleven".