124270321 has 12 divisors (see below), whose sum is σ = 145538100. Its totient is φ = 105796320.

The previous prime is 124270291. The next prime is 124270331. The reversal of 124270321 is 123072421.

It can be written as a sum of positive squares in 2 ways, for example, as 73290721 + 50979600 = 8561^2 + 7140^2 .

It is not a de Polignac number, because 124270321 - 2¹¹ = 124268273 is a prime.

It is a super-2 number, since 2×124270321² = 30886225362886082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124270292 and 124270301.

It is not an unprimeable number, because it can be changed into a prime (124270331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1210 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (12128175).

Almost surely, 2^124270321 is an apocalyptic number.

It is an amenable number.

124270321 is a deficient number, since it is larger than the sum of its proper divisors (21267779).

124270321 is a wasteful number, since it uses less digits than its factorization.

124270321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17184 (or 17177 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 124270321 is about 11147.6598889632. The cubic root of 124270321 is about 499.0251954138.

The spelling of 124270321 in words is "one hundred twenty-four million, two hundred seventy thousand, three hundred twenty-one".