124320023 has 4 divisors (see below), whose sum is σ = 124442808. Its totient is φ = 124197240.

The previous prime is 124320011. The next prime is 124320067. The reversal of 124320023 is 320023421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320023421 = 1523 ⋅210127.

It is a cyclic number.

It is not a de Polignac number, because 124320023 - 2¹⁴ = 124303639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124319983 and 124320010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124328023) 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, 59861 + ... + 61902.

It is an arithmetic number, because the mean of its divisors is an integer number (31110702).

Almost surely, 2^124320023 is an apocalyptic number.

124320023 is a deficient number, since it is larger than the sum of its proper divisors (122785).

124320023 is a wasteful number, since it uses less digits than its factorization.

124320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122784.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 124320023 is about 11149.8889232135. Note that the first 3 decimals coincide. The cubic root of 124320023 is about 499.0917150359.

Adding to 124320023 its reverse (320023421), we get a palindrome (444343444).

The spelling of 124320023 in words is "one hundred twenty-four million, three hundred twenty thousand, twenty-three".