124320513 has 8 divisors (see below), whose sum is σ = 166971168. Its totient is φ = 82275104.

The previous prime is 124320491. The next prime is 124320529. The reversal of 124320513 is 315023421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124320513 - 2¹⁸ = 124058369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124320513.

It is not an unprimeable number, because it can be changed into a prime (124320583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150831 + ... + 151652.

It is an arithmetic number, because the mean of its divisors is an integer number (20871396).

Almost surely, 2^124320513 is an apocalyptic number.

It is an amenable number.

124320513 is a deficient number, since it is larger than the sum of its proper divisors (42650655).

124320513 is a wasteful number, since it uses less digits than its factorization.

124320513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302623.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 124320513 is about 11149.9108965050. The cubic root of 124320513 is about 499.0923707485.

Adding to 124320513 its reverse (315023421), we get a palindrome (439343934).

The spelling of 124320513 in words is "one hundred twenty-four million, three hundred twenty thousand, five hundred thirteen".