1343442243251 has 4 divisors (see below), whose sum is σ = 1343521068432. Its totient is φ = 1343363418072.

The previous prime is 1343442243223. The next prime is 1343442243301. The reversal of 1343442243251 is 1523422443431.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343442243251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343442243211) 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, 39387020 + ... + 39421113.

It is an arithmetic number, because the mean of its divisors is an integer number (335880267108).

Almost surely, 2^{1343442243251} is an apocalyptic number.

1343442243251 is a deficient number, since it is larger than the sum of its proper divisors (78825181).

1343442243251 is an equidigital number, since it uses as much as digits as its factorization.

1343442243251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78825180.

The product of its digits is 276480, while the sum is 38.

Adding to 1343442243251 its reverse (1523422443431), we get a palindrome (2866864686682).

The spelling of 1343442243251 in words is "one trillion, three hundred forty-three billion, four hundred forty-two million, two hundred forty-three thousand, two hundred fifty-one".