111120102109 has 4 divisors (see below), whose sum is σ = 112526685760. Its totient is φ = 109713518460.

The previous prime is 111120102073. The next prime is 111120102167. The reversal of 111120102109 is 901201021111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 901201021111 = 31 ⋅29071000681.

It is a cyclic number.

It is not a de Polignac number, because 111120102109 - 2⁹ = 111120101597 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 (111120102199) 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, 703291707 + ... + 703291864.

It is an arithmetic number, because the mean of its divisors is an integer number (28131671440).

Almost surely, 2^111120102109 is an apocalyptic number.

It is an amenable number.

111120102109 is a deficient number, since it is larger than the sum of its proper divisors (1406583651).

111120102109 is an equidigital number, since it uses as much as digits as its factorization.

111120102109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406583650.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 111120102109 in words is "one hundred eleven billion, one hundred twenty million, one hundred two thousand, one hundred nine".