102403122109 has 2 divisors, whose sum is σ = 102403122110. Its totient is φ = 102403122108.

The previous prime is 102403122091. The next prime is 102403122131. The reversal of 102403122109 is 901221304201.

Together with previous prime (102403122091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99806710084 + 2596412025 = 315922^2 + 50955^2 .

It is a cyclic number.

It is not a de Polignac number, because 102403122109 - 2⁵ = 102403122077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102403125109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51201561054 + 51201561055.

It is an arithmetic number, because the mean of its divisors is an integer number (51201561055).

Almost surely, 2^102403122109 is an apocalyptic number.

It is an amenable number.

102403122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

102403122109 is an equidigital number, since it uses as much as digits as its factorization.

102403122109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 102403122109 in words is "one hundred two billion, four hundred three million, one hundred twenty-two thousand, one hundred nine".