1243442232401 has 8 divisors (see below), whose sum is σ = 1255087487520. Its totient is φ = 1231797427488.

The previous prime is 1243442232397. The next prime is 1243442232449. The reversal of 1243442232401 is 1042322443421.

It is a happy number.

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 1243442232401 - 2² = 1243442232397 is a prime.

It is a super-2 number, since 2×1243442232401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243442232491) 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 7 ways as a sum of consecutive naturals, for example, 8522870 + ... + 8667536.

It is an arithmetic number, because the mean of its divisors is an integer number (156885935940).

Almost surely, 2^{1243442232401} is an apocalyptic number.

It is an amenable number.

1243442232401 is a deficient number, since it is larger than the sum of its proper divisors (11645255119).

1243442232401 is a wasteful number, since it uses less digits than its factorization.

1243442232401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225103.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1243442232401 its reverse (1042322443421), we get a palindrome (2285764675822).

The spelling of 1243442232401 in words is "one trillion, two hundred forty-three billion, four hundred forty-two million, two hundred thirty-two thousand, four hundred one".