122503109 has 2 divisors, whose sum is σ = 122503110. Its totient is φ = 122503108.

The previous prime is 122503093. The next prime is 122503133. The reversal of 122503109 is 901305221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109202500 + 13300609 = 10450^2 + 3647^2 .

It is a cyclic number.

It is not a de Polignac number, because 122503109 - 2⁴ = 122503093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122503159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61251554 + 61251555.

It is an arithmetic number, because the mean of its divisors is an integer number (61251555).

Almost surely, 2^122503109 is an apocalyptic number.

It is an amenable number.

122503109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122503109 is an equidigital number, since it uses as much as digits as its factorization.

122503109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 122503109 is about 11068.1122600017. The cubic root of 122503109 is about 496.6483956964.

The spelling of 122503109 in words is "one hundred twenty-two million, five hundred three thousand, one hundred nine".