1100511060109 has 4 divisors (see below), whose sum is σ = 1100930944860. Its totient is φ = 1100091175360.

The previous prime is 1100511060073. The next prime is 1100511060113. The reversal of 1100511060109 is 9010601150011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 948438358884 + 152072701225 = 973878^2 + 389965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100511060109 - 2¹³ = 1100511051917 is a prime.

It is a super-2 number, since 2×1100511060109² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100511060119) 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, 209938444 + ... + 209943685.

It is an arithmetic number, because the mean of its divisors is an integer number (275232736215).

Almost surely, 2^{1100511060109} is an apocalyptic number.

It is an amenable number.

1100511060109 is a deficient number, since it is larger than the sum of its proper divisors (419884751).

1100511060109 is an equidigital number, since it uses as much as digits as its factorization.

1100511060109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419884750.

The product of its (nonzero) digits is 270, while the sum is 25.

The spelling of 1100511060109 in words is "one trillion, one hundred billion, five hundred eleven million, sixty thousand, one hundred nine".