1343244432421 has 4 divisors (see below), whose sum is σ = 1343542075852. Its totient is φ = 1342946788992.

The previous prime is 1343244432367. The next prime is 1343244432473. The reversal of 1343244432421 is 1242344423431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 580512943396 + 762731489025 = 761914^2 + 873345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343244432421 - 2⁷ = 1343244432293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343244432521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148814946 + ... + 148823971.

It is an arithmetic number, because the mean of its divisors is an integer number (335885518963).

Almost surely, 2^{1343244432421} is an apocalyptic number.

It is an amenable number.

1343244432421 is a deficient number, since it is larger than the sum of its proper divisors (297643431).

1343244432421 is an equidigital number, since it uses as much as digits as its factorization.

1343244432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297643430.

The product of its digits is 221184, while the sum is 37.

Adding to 1343244432421 its reverse (1242344423431), we get a palindrome (2585588855852).

The spelling of 1343244432421 in words is "one trillion, three hundred forty-three billion, two hundred forty-four million, four hundred thirty-two thousand, four hundred twenty-one".