124311321 has 8 divisors (see below), whose sum is σ = 184164960. Its totient is φ = 82874196.

The previous prime is 124311307. The next prime is 124311349. The reversal of 124311321 is 123113421.

It is a de Polignac number, because none of the positive numbers 2^k-124311321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124311294 and 124311303.

It is not an unprimeable number, because it can be changed into a prime (124311301) 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, 2302035 + ... + 2302088.

It is an arithmetic number, because the mean of its divisors is an integer number (23020620).

Almost surely, 2^124311321 is an apocalyptic number.

It is an amenable number.

124311321 is a deficient number, since it is larger than the sum of its proper divisors (59853639).

124311321 is an equidigital number, since it uses as much as digits as its factorization.

124311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604132 (or 4604126 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 124311321 is about 11149.4986882819. The cubic root of 124311321 is about 499.0800698283.

Adding to 124311321 its reverse (123113421), we get a palindrome (247424742).

The spelling of 124311321 in words is "one hundred twenty-four million, three hundred eleven thousand, three hundred twenty-one".