11120020101 has 24 divisors (see below), whose sum is σ = 16637919480. Its totient is φ = 7148324736.

The previous prime is 11120020099. The next prime is 11120020111. The reversal of 11120020101 is 10102002111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2115908001 + 9004112100 = 45999^2 + 94890^2 .

It is not a de Polignac number, because 11120020101 - 2¹ = 11120020099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120020111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174195 + ... + 229311.

It is an arithmetic number, because the mean of its divisors is an integer number (693246645).

Almost surely, 2^11120020101 is an apocalyptic number.

It is an amenable number.

11120020101 is a deficient number, since it is larger than the sum of its proper divisors (5517899379).

11120020101 is a wasteful number, since it uses less digits than its factorization.

11120020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55925 (or 55922 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11120020101 its reverse (10102002111), we get a palindrome (21222022212).

The spelling of 11120020101 in words is "eleven billion, one hundred twenty million, twenty thousand, one hundred one".