1241242321 has 12 divisors (see below), whose sum is σ = 1365235956. Its totient is φ = 1127661920.

The previous prime is 1241242319. The next prime is 1241242333. The reversal of 1241242321 is 1232421421.

It can be written as a sum of positive squares in 2 ways, for example, as 508998721 + 732243600 = 22561^2 + 27060^2 .

It is not a de Polignac number, because 1241242321 - 2¹ = 1241242319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241242292 and 1241242301.

It is not an unprimeable number, because it can be changed into a prime (1241242421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280095 + ... + 284491.

It is an arithmetic number, because the mean of its divisors is an integer number (113769663).

Almost surely, 2^1241242321 is an apocalyptic number.

1241242321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1241242321 is a deficient number, since it is larger than the sum of its proper divisors (123993635).

1241242321 is a wasteful number, since it uses less digits than its factorization.

1241242321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752 (or 6741 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1241242321 is about 35231.2690801793. The cubic root of 1241242321 is about 1074.6957339000.

Adding to 1241242321 its reverse (1232421421), we get a palindrome (2473663742).

Subtracting from 1241242321 its reverse (1232421421), we obtain a square (8820900 = 2970²).

The spelling of 1241242321 in words is "one billion, two hundred forty-one million, two hundred forty-two thousand, three hundred twenty-one".