124132321 has 4 divisors (see below), whose sum is σ = 124154644. Its totient is φ = 124110000.

The previous prime is 124132319. The next prime is 124132331. The reversal of 124132321 is 123231421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 26122321 + 98010000 = 5111^2 + 9900^2 .

It is a cyclic number.

It is not a de Polignac number, because 124132321 - 2¹ = 124132319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124132331) 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, 4591 + ... + 16411.

It is an arithmetic number, because the mean of its divisors is an integer number (31038661).

Almost surely, 2^124132321 is an apocalyptic number.

It is an amenable number.

124132321 is a deficient number, since it is larger than the sum of its proper divisors (22323).

124132321 is a wasteful number, since it uses less digits than its factorization.

124132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22322.

The product of its digits is 288, while the sum is 19.

The square root of 124132321 is about 11141.4685297765. The cubic root of 124132321 is about 498.8404074358.

Adding to 124132321 its reverse (123231421), we get a palindrome (247363742).

The spelling of 124132321 in words is "one hundred twenty-four million, one hundred thirty-two thousand, three hundred twenty-one".