111230320109 has 2 divisors, whose sum is σ = 111230320110. Its totient is φ = 111230320108.

The previous prime is 111230320099. The next prime is 111230320129. The reversal of 111230320109 is 901023032111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111122222500 + 108097609 = 333350^2 + 10397^2 .

It is a cyclic number.

It is not a de Polignac number, because 111230320109 - 2⁴ = 111230320093 is a prime.

It is a super-2 number, since 2×111230320109² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111230320129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615160054 + 55615160055.

It is an arithmetic number, because the mean of its divisors is an integer number (55615160055).

Almost surely, 2^111230320109 is an apocalyptic number.

It is an amenable number.

111230320109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111230320109 is an equidigital number, since it uses as much as digits as its factorization.

111230320109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 111230320109 in words is "one hundred eleven billion, two hundred thirty million, three hundred twenty thousand, one hundred nine".