1144340434423 has 32 divisors (see below), whose sum is σ = 1244264071680. Its totient is φ = 1048852800000.

The previous prime is 1144340434409. The next prime is 1144340434427. The reversal of 1144340434423 is 3244340434411.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144340434423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144340434427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70686936 + ... + 70703122.

It is an arithmetic number, because the mean of its divisors is an integer number (38883252240).

Almost surely, 2^{1144340434423} is an apocalyptic number.

1144340434423 is a deficient number, since it is larger than the sum of its proper divisors (99923637257).

1144340434423 is a wasteful number, since it uses less digits than its factorization.

1144340434423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16999.

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

Adding to 1144340434423 its reverse (3244340434411), we get a palindrome (4388680868834).

The spelling of 1144340434423 in words is "one trillion, one hundred forty-four billion, three hundred forty million, four hundred thirty-four thousand, four hundred twenty-three".