124320123 has 16 divisors (see below), whose sum is σ = 188098560. Its totient is φ = 81115848.

The previous prime is 124320113. The next prime is 124320127. The reversal of 124320123 is 321023421.

It is not a de Polignac number, because 124320123 - 2⁴ = 124320107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124320096 and 124320105.

It is not an unprimeable number, because it can be changed into a prime (124320127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47715 + ... + 50252.

It is an arithmetic number, because the mean of its divisors is an integer number (11756160).

Almost surely, 2^124320123 is an apocalyptic number.

124320123 is a deficient number, since it is larger than the sum of its proper divisors (63778437).

124320123 is an equidigital number, since it uses as much as digits as its factorization.

124320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98023 (or 98017 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 124320123 is about 11149.8934075622. The cubic root of 124320123 is about 499.0918488550.

Adding to 124320123 its reverse (321023421), we get a palindrome (445343544).

The spelling of 124320123 in words is "one hundred twenty-four million, three hundred twenty thousand, one hundred twenty-three".