123618107 has 2 divisors, whose sum is σ = 123618108. Its totient is φ = 123618106.

The previous prime is 123618023. The next prime is 123618109. The reversal of 123618107 is 701816321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123618107 - 2¹² = 123614011 is a prime.

Together with 123618109, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 123618107.

It is not a weakly prime, because it can be changed into another prime (123618109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61809053 + 61809054.

It is an arithmetic number, because the mean of its divisors is an integer number (61809054).

Almost surely, 2^123618107 is an apocalyptic number.

123618107 is a deficient number, since it is larger than the sum of its proper divisors (1).

123618107 is an equidigital number, since it uses as much as digits as its factorization.

123618107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 123618107 is about 11118.3680007454. The cubic root of 123618107 is about 498.1506441996.

The spelling of 123618107 in words is "one hundred twenty-three million, six hundred eighteen thousand, one hundred seven".