123732943 has 2 divisors, whose sum is σ = 123732944. Its totient is φ = 123732942.

The previous prime is 123732941. The next prime is 123732967. The reversal of 123732943 is 349237321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123732943 - 2¹ = 123732941 is a prime.

Together with 123732941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 123732899 and 123732908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123732941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61866471 + 61866472.

It is an arithmetic number, because the mean of its divisors is an integer number (61866472).

Almost surely, 2^123732943 is an apocalyptic number.

123732943 is a deficient number, since it is larger than the sum of its proper divisors (1).

123732943 is an equidigital number, since it uses as much as digits as its factorization.

123732943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 123732943 is about 11123.5310490869. The cubic root of 123732943 is about 498.3048500950.

The spelling of 123732943 in words is "one hundred twenty-three million, seven hundred thirty-two thousand, nine hundred forty-three".