124444321321 has 4 divisors (see below), whose sum is σ = 124456468932. Its totient is φ = 124432173712.

The previous prime is 124444321307. The next prime is 124444321333. The reversal of 124444321321 is 123123444421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17736912400 + 106707408921 = 133180^2 + 326661^2 .

It is a cyclic number.

It is not a de Polignac number, because 124444321321 - 2¹⁷ = 124444190249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124444321361) 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, 6058426 + ... + 6078931.

It is an arithmetic number, because the mean of its divisors is an integer number (31114117233).

Almost surely, 2^124444321321 is an apocalyptic number.

It is an amenable number.

124444321321 is a deficient number, since it is larger than the sum of its proper divisors (12147611).

124444321321 is a wasteful number, since it uses less digits than its factorization.

124444321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12147610.

The product of its digits is 18432, while the sum is 31.

Adding to 124444321321 its reverse (123123444421), we get a palindrome (247567765742).

The spelling of 124444321321 in words is "one hundred twenty-four billion, four hundred forty-four million, three hundred twenty-one thousand, three hundred twenty-one".