1011201109 has 4 divisors (see below), whose sum is σ = 1064422240. Its totient is φ = 957979980.

The previous prime is 1011201091. The next prime is 1011201119. The reversal of 1011201109 is 9011021101.

1011201109 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1011201109 - 2⁵ = 1011201077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011201092 and 1011201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011201119) 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, 26610537 + ... + 26610574.

It is an arithmetic number, because the mean of its divisors is an integer number (266105560).

Almost surely, 2^1011201109 is an apocalyptic number.

1011201109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1011201109 is a deficient number, since it is larger than the sum of its proper divisors (53221131).

1011201109 is an equidigital number, since it uses as much as digits as its factorization.

1011201109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53221130.

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

The square root of 1011201109 is about 31799.3885004099. The cubic root of 1011201109 is about 1003.7198485691.

The spelling of 1011201109 in words is "one billion, eleven million, two hundred one thousand, one hundred nine".