123310043 has 2 divisors, whose sum is σ = 123310044. Its totient is φ = 123310042.

The previous prime is 123310037. The next prime is 123310049. The reversal of 123310043 is 340013321.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (123310037) and next prime (123310049).

It is a cyclic number.

It is not a de Polignac number, because 123310043 - 2²⁴ = 106532827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123310049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655021 + 61655022.

It is an arithmetic number, because the mean of its divisors is an integer number (61655022).

Almost surely, 2^123310043 is an apocalyptic number.

123310043 is a deficient number, since it is larger than the sum of its proper divisors (1).

123310043 is an equidigital number, since it uses as much as digits as its factorization.

123310043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123310043 is about 11104.5055270372. The cubic root of 123310043 is about 497.7364925305.

Adding to 123310043 its reverse (340013321), we get a palindrome (463323364).

The spelling of 123310043 in words is "one hundred twenty-three million, three hundred ten thousand, forty-three".