1103668121 has 2 divisors, whose sum is σ = 1103668122. Its totient is φ = 1103668120.

The previous prime is 1103668103. The next prime is 1103668127. The reversal of 1103668121 is 1218663011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 896164096 + 207504025 = 29936^2 + 14405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103668121 - 2¹⁴ = 1103651737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103668127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551834060 + 551834061.

It is an arithmetic number, because the mean of its divisors is an integer number (551834061).

Almost surely, 2^1103668121 is an apocalyptic number.

It is an amenable number.

1103668121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103668121 is an equidigital number, since it uses as much as digits as its factorization.

1103668121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1103668121 is about 33221.5008842165. The cubic root of 1103668121 is about 1033.4262752221.

The spelling of 1103668121 in words is "one billion, one hundred three million, six hundred sixty-eight thousand, one hundred twenty-one".