111928327309 has 2 divisors, whose sum is σ = 111928327310. Its totient is φ = 111928327308.

The previous prime is 111928327187. The next prime is 111928327337. The reversal of 111928327309 is 903723829111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110230640100 + 1697687209 = 332010^2 + 41203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111928327309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111928327339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55964163654 + 55964163655.

It is an arithmetic number, because the mean of its divisors is an integer number (55964163655).

Almost surely, 2^111928327309 is an apocalyptic number.

It is an amenable number.

111928327309 is a deficient number, since it is larger than the sum of its proper divisors (1).

111928327309 is an equidigital number, since it uses as much as digits as its factorization.

111928327309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 111928327309 in words is "one hundred eleven billion, nine hundred twenty-eight million, three hundred twenty-seven thousand, three hundred nine".