123116843 has 2 divisors, whose sum is σ = 123116844. Its totient is φ = 123116842.

The previous prime is 123116837. The next prime is 123116867. The reversal of 123116843 is 348611321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123116843 - 2²⁰ = 122068267 is a prime.

It is not a weakly prime, because it can be changed into another prime (123116243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61558421 + 61558422.

It is an arithmetic number, because the mean of its divisors is an integer number (61558422).

Almost surely, 2^123116843 is an apocalyptic number.

123116843 is a deficient number, since it is larger than the sum of its proper divisors (1).

123116843 is an equidigital number, since it uses as much as digits as its factorization.

123116843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 123116843 is about 11095.8029452582. The cubic root of 123116843 is about 497.4764083996.

The spelling of 123116843 in words is "one hundred twenty-three million, one hundred sixteen thousand, eight hundred forty-three".