124340665321 has 8 divisors (see below), whose sum is σ = 128794699080. Its totient is φ = 119897726592.

The previous prime is 124340665307. The next prime is 124340665333. The reversal of 124340665321 is 123566043421.

It can be written as a sum of positive squares in 4 ways, for example, as 770839696 + 123569825625 = 27764^2 + 351525^2 .

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 124340665321 - 2²³ = 124332276713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124340665301) 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, 2750940 + ... + 2795773.

It is an arithmetic number, because the mean of its divisors is an integer number (16099337385).

Almost surely, 2^124340665321 is an apocalyptic number.

It is an amenable number.

124340665321 is a deficient number, since it is larger than the sum of its proper divisors (4454033759).

124340665321 is an equidigital number, since it uses as much as digits as its factorization.

124340665321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547515.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 124340665321 in words is "one hundred twenty-four billion, three hundred forty million, six hundred sixty-five thousand, three hundred twenty-one".