1144401313243 has 4 divisors (see below), whose sum is σ = 1145975456080. Its totient is φ = 1142827170408.

The previous prime is 1144401313189. The next prime is 1144401313283. The reversal of 1144401313243 is 3423131044411.

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-1144401313243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144401313283) 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, 787070328 + ... + 787071781.

It is an arithmetic number, because the mean of its divisors is an integer number (286493864020).

Almost surely, 2^{1144401313243} is an apocalyptic number.

1144401313243 is a deficient number, since it is larger than the sum of its proper divisors (1574142837).

1144401313243 is an equidigital number, since it uses as much as digits as its factorization.

1144401313243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574142836.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 1144401313243 its reverse (3423131044411), we get a palindrome (4567532357654).

The spelling of 1144401313243 in words is "one trillion, one hundred forty-four billion, four hundred one million, three hundred thirteen thousand, two hundred forty-three".