1020011101 has 4 divisors (see below), whose sum is σ = 1080011772. Its totient is φ = 960010432.

The previous prime is 1020011093. The next prime is 1020011123. The reversal of 1020011101 is 1011100201.

1020011101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1011100201 = 12697 ⋅79633.

It can be written as a sum of positive squares in 2 ways, for example, as 834343225 + 185667876 = 28885^2 + 13626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020011101 - 2³ = 1020011093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020011141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30000310 + ... + 30000343.

It is an arithmetic number, because the mean of its divisors is an integer number (270002943).

Almost surely, 2^1020011101 is an apocalyptic number.

It is an amenable number.

1020011101 is a deficient number, since it is larger than the sum of its proper divisors (60000671).

1020011101 is an equidigital number, since it uses as much as digits as its factorization.

1020011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60000670.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1020011101 is about 31937.6126377661. The cubic root of 1020011101 is about 1006.6263613504.

Adding to 1020011101 its reverse (1011100201), we get a palindrome (2031111302).

The spelling of 1020011101 in words is "one billion, twenty million, eleven thousand, one hundred one".