1344120143 has 4 divisors (see below), whose sum is σ = 1344278040. Its totient is φ = 1343962248.

The previous prime is 1344120139. The next prime is 1344120157. The reversal of 1344120143 is 3410214431.

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

It is a cyclic number.

It is not a de Polignac number, because 1344120143 - 2² = 1344120139 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 (1344120133) 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, 65405 + ... + 83462.

It is an arithmetic number, because the mean of its divisors is an integer number (336069510).

Almost surely, 2^1344120143 is an apocalyptic number.

1344120143 is a deficient number, since it is larger than the sum of its proper divisors (157897).

1344120143 is an equidigital number, since it uses as much as digits as its factorization.

1344120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157896.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1344120143 is about 36662.2441075284. The cubic root of 1344120143 is about 1103.6025530476.

Adding to 1344120143 its reverse (3410214431), we get a palindrome (4754334574).

The spelling of 1344120143 in words is "one billion, three hundred forty-four million, one hundred twenty thousand, one hundred forty-three".