123430117 has 2 divisors, whose sum is σ = 123430118. Its totient is φ = 123430116.

The previous prime is 123430091. The next prime is 123430123. The reversal of 123430117 is 711034321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121198081 + 2232036 = 11009^2 + 1494^2 .

It is a cyclic number.

It is not a de Polignac number, because 123430117 - 2¹⁹ = 122905829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123433117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61715058 + 61715059.

It is an arithmetic number, because the mean of its divisors is an integer number (61715059).

Almost surely, 2^123430117 is an apocalyptic number.

It is an amenable number.

123430117 is a deficient number, since it is larger than the sum of its proper divisors (1).

123430117 is an equidigital number, since it uses as much as digits as its factorization.

123430117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 123430117 is about 11109.9107557172. The cubic root of 123430117 is about 497.8979982271.

Adding to 123430117 its reverse (711034321), we get a palindrome (834464438).

The spelling of 123430117 in words is "one hundred twenty-three million, four hundred thirty thousand, one hundred seventeen".