1144311112231 has 4 divisors (see below), whose sum is σ = 1307784128272. Its totient is φ = 980838096192.

The previous prime is 1144311112213. The next prime is 1144311112309. The reversal of 1144311112231 is 1322111134411.

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 1144311112231 - 2²⁷ = 1144176894503 is a prime.

It is a super-2 number, since 2×1144311112231² (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 = 1144311112196 and 1144311112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144311112031) 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, 81736508010 + ... + 81736508023.

It is an arithmetic number, because the mean of its divisors is an integer number (326946032068).

Almost surely, 2^{1144311112231} is an apocalyptic number.

1144311112231 is a deficient number, since it is larger than the sum of its proper divisors (163473016041).

1144311112231 is an equidigital number, since it uses as much as digits as its factorization.

1144311112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163473016040.

The product of its digits is 576, while the sum is 25.

Adding to 1144311112231 its reverse (1322111134411), we get a palindrome (2466422246642).

The spelling of 1144311112231 in words is "one trillion, one hundred forty-four billion, three hundred eleven million, one hundred twelve thousand, two hundred thirty-one".