10111002109 has 4 divisors (see below), whose sum is σ = 10888771516. Its totient is φ = 9333232704.

The previous prime is 10111002079. The next prime is 10111002119. The reversal of 10111002109 is 90120011101.

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 2950119225 + 7160882884 = 54315^2 + 84622^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111002109 - 2⁹ = 10111001597 is a prime.

It is a super-3 number, since 3×10111002109³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111002092 and 10111002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111002119) 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, 388884684 + ... + 388884709.

It is an arithmetic number, because the mean of its divisors is an integer number (2722192879).

Almost surely, 2^10111002109 is an apocalyptic number.

It is an amenable number.

10111002109 is a deficient number, since it is larger than the sum of its proper divisors (777769407).

10111002109 is an equidigital number, since it uses as much as digits as its factorization.

10111002109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777769406.

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

The spelling of 10111002109 in words is "ten billion, one hundred eleven million, two thousand, one hundred nine".