1230443441 has 4 divisors (see below), whose sum is σ = 1230626292. Its totient is φ = 1230260592.

The previous prime is 1230443411. The next prime is 1230443447. The reversal of 1230443441 is 1443440321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1443440321 = 31 ⋅46562591.

It can be written as a sum of positive squares in 2 ways, for example, as 463153441 + 767290000 = 21521^2 + 27700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230443441 is a prime.

It is a super-3 number, since 3×1230443441³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230443441.

It is not an unprimeable number, because it can be changed into a prime (1230443447) 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, 80930 + ... + 94923.

It is an arithmetic number, because the mean of its divisors is an integer number (307656573).

Almost surely, 2^1230443441 is an apocalyptic number.

It is an amenable number.

1230443441 is a deficient number, since it is larger than the sum of its proper divisors (182851).

1230443441 is an equidigital number, since it uses as much as digits as its factorization.

1230443441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182850.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1230443441 is about 35077.6772463628. The cubic root of 1230443441 is about 1071.5700132958.

Adding to 1230443441 its reverse (1443440321), we get a palindrome (2673883762).

The spelling of 1230443441 in words is "one billion, two hundred thirty million, four hundred forty-three thousand, four hundred forty-one".