1103828394209 has 2 divisors, whose sum is σ = 1103828394210. Its totient is φ = 1103828394208.

The previous prime is 1103828394181. The next prime is 1103828394241. The reversal of 1103828394209 is 9024938283011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833152723984 + 270675670225 = 912772^2 + 520265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103828394209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103828394259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551914197104 + 551914197105.

It is an arithmetic number, because the mean of its divisors is an integer number (551914197105).

Almost surely, 2^{1103828394209} is an apocalyptic number.

It is an amenable number.

1103828394209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103828394209 is an equidigital number, since it uses as much as digits as its factorization.

1103828394209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 1103828394209 in words is "one trillion, one hundred three billion, eight hundred twenty-eight million, three hundred ninety-four thousand, two hundred nine".