1111021323109 has 8 divisors (see below), whose sum is σ = 1183868359128. Its totient is φ = 1039006824960.

The previous prime is 1111021323077. The next prime is 1111021323163. The reversal of 1111021323109 is 9013231201111.

It can be written as a sum of positive squares in 4 ways, for example, as 549937930084 + 561083393025 = 741578^2 + 749055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111021323109 - 2⁵ = 1111021323077 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 (1111021323199) 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, 208131712 + ... + 208137049.

It is an arithmetic number, because the mean of its divisors is an integer number (147983544891).

Almost surely, 2^{1111021323109} is an apocalyptic number.

It is an amenable number.

1111021323109 is a deficient number, since it is larger than the sum of its proper divisors (72847036019).

1111021323109 is a wasteful number, since it uses less digits than its factorization.

1111021323109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416268935.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 1111021323109 in words is "one trillion, one hundred eleven billion, twenty-one million, three hundred twenty-three thousand, one hundred nine".