11444431231 has 8 divisors (see below), whose sum is σ = 11817701504. Its totient is φ = 11071416960.

The previous prime is 11444431199. The next prime is 11444431259. The reversal of 11444431231 is 13213444411.

11444431231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11444431231 - 2⁵ = 11444431199 is a prime.

It is a super-2 number, since 2×11444431231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11444431231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444432231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29035 + ... + 154051.

It is an arithmetic number, because the mean of its divisors is an integer number (1477212688).

Almost surely, 2^11444431231 is an apocalyptic number.

11444431231 is a deficient number, since it is larger than the sum of its proper divisors (373270273).

11444431231 is a wasteful number, since it uses less digits than its factorization.

11444431231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128001.

The product of its digits is 4608, while the sum is 28.

Adding to 11444431231 its reverse (13213444411), we get a palindrome (24657875642).

The spelling of 11444431231 in words is "eleven billion, four hundred forty-four million, four hundred thirty-one thousand, two hundred thirty-one".