1103111323109 has 2 divisors, whose sum is σ = 1103111323110. Its totient is φ = 1103111323108.

The previous prime is 1103111323073. The next prime is 1103111323187. The reversal of 1103111323109 is 9013231113011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 909167971009 + 193943352100 = 953503^2 + 440390^2 .

It is an emirp because it is prime and its reverse (9013231113011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103111323109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103111322109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551555661554 + 551555661555.

It is an arithmetic number, because the mean of its divisors is an integer number (551555661555).

Almost surely, 2^{1103111323109} is an apocalyptic number.

It is an amenable number.

1103111323109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103111323109 is an equidigital number, since it uses as much as digits as its factorization.

1103111323109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The spelling of 1103111323109 in words is "one trillion, one hundred three billion, one hundred eleven million, three hundred twenty-three thousand, one hundred nine".