1144113323231 has 4 divisors (see below), whose sum is σ = 1156968529200. Its totient is φ = 1131258117264.

The previous prime is 1144113323113. The next prime is 1144113323273. The reversal of 1144113323231 is 1323233114411.

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 1144113323231 - 2³⁰ = 1143039581407 is a prime.

It is a super-2 number, since 2×1144113323231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144113323194 and 1144113323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144113323831) 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, 6427602851 + ... + 6427603028.

It is an arithmetic number, because the mean of its divisors is an integer number (289242132300).

Almost surely, 2^{1144113323231} is an apocalyptic number.

1144113323231 is a deficient number, since it is larger than the sum of its proper divisors (12855205969).

1144113323231 is an equidigital number, since it uses as much as digits as its factorization.

1144113323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12855205968.

The product of its digits is 5184, while the sum is 29.

Adding to 1144113323231 its reverse (1323233114411), we get a palindrome (2467346437642).

The spelling of 1144113323231 in words is "one trillion, one hundred forty-four billion, one hundred thirteen million, three hundred twenty-three thousand, two hundred thirty-one".