123406703 has 4 divisors (see below), whose sum is σ = 141036240. Its totient is φ = 105777168.

The previous prime is 123406693. The next prime is 123406711. The reversal of 123406703 is 307604321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 307604321 = 12437 ⋅24733.

It is not a de Polignac number, because 123406703 - 2⁸ = 123406447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123406783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8814758 + ... + 8814771.

It is an arithmetic number, because the mean of its divisors is an integer number (35259060).

Almost surely, 2^123406703 is an apocalyptic number.

123406703 is a deficient number, since it is larger than the sum of its proper divisors (17629537).

123406703 is an equidigital number, since it uses as much as digits as its factorization.

123406703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17629536.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 123406703 is about 11108.8569619021. The cubic root of 123406703 is about 497.8665134182.

The spelling of 123406703 in words is "one hundred twenty-three million, four hundred six thousand, seven hundred three".