11121110109 has 8 divisors (see below), whose sum is σ = 16475718720. Its totient is φ = 7414073388.

The previous prime is 11121110107. The next prime is 11121110111. The reversal of 11121110109 is 90101112111.

It is an interprime number because it is at equal distance from previous prime (11121110107) and next prime (11121110111).

It is not a de Polignac number, because 11121110109 - 2¹ = 11121110107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121110091 and 11121110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121110107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205946457 + ... + 205946510.

It is an arithmetic number, because the mean of its divisors is an integer number (2059464840).

Almost surely, 2^11121110109 is an apocalyptic number.

It is an amenable number.

11121110109 is a deficient number, since it is larger than the sum of its proper divisors (5354608611).

11121110109 is an equidigital number, since it uses as much as digits as its factorization.

11121110109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411892976 (or 411892970 counting only the distinct ones).

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

The spelling of 11121110109 in words is "eleven billion, one hundred twenty-one million, one hundred ten thousand, one hundred nine".