11444253231 has 4 divisors (see below), whose sum is σ = 15259004312. Its totient is φ = 7629502152.

The previous prime is 11444253193. The next prime is 11444253251. The reversal of 11444253231 is 13235244411.

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

It is not a de Polignac number, because 11444253231 - 2¹⁰ = 11444252207 is a prime.

It is a super-2 number, since 2×11444253231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444253251) 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, 1907375536 + ... + 1907375541.

It is an arithmetic number, because the mean of its divisors is an integer number (3814751078).

Almost surely, 2^11444253231 is an apocalyptic number.

11444253231 is a deficient number, since it is larger than the sum of its proper divisors (3814751081).

11444253231 is an equidigital number, since it uses as much as digits as its factorization.

11444253231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814751080.

The product of its digits is 11520, while the sum is 30.

Adding to 11444253231 its reverse (13235244411), we get a palindrome (24679497642).

The spelling of 11444253231 in words is "eleven billion, four hundred forty-four million, two hundred fifty-three thousand, two hundred thirty-one".