103320121 has 2 divisors, whose sum is σ = 103320122. Its totient is φ = 103320120.

The previous prime is 103320083. The next prime is 103320131. The reversal of 103320121 is 121023301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103306896 + 13225 = 10164^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 103320121 - 2²¹ = 101222969 is a prime.

It is not a weakly prime, because it can be changed into another prime (103320131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51660060 + 51660061.

It is an arithmetic number, because the mean of its divisors is an integer number (51660061).

Almost surely, 2^103320121 is an apocalyptic number.

It is an amenable number.

103320121 is a deficient number, since it is larger than the sum of its proper divisors (1).

103320121 is an equidigital number, since it uses as much as digits as its factorization.

103320121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103320121 is about 10164.6505596602. The cubic root of 103320121 is about 469.2399379661.

Adding to 103320121 its reverse (121023301), we get a palindrome (224343422).

The spelling of 103320121 in words is "one hundred three million, three hundred twenty thousand, one hundred twenty-one".