11444123331 has 12 divisors (see below), whose sum is σ = 16531343400. Its totient is φ = 7628980320.

The previous prime is 11444123309. The next prime is 11444123333. The reversal of 11444123331 is 13332144411.

It is not a de Polignac number, because 11444123331 - 2⁶ = 11444123267 is a prime.

It is a super-2 number, since 2×11444123331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11444123295 and 11444123304.

It is not an unprimeable number, because it can be changed into a prime (11444123333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245320 + ... + 288218.

It is an arithmetic number, because the mean of its divisors is an integer number (1377611950).

Almost surely, 2^11444123331 is an apocalyptic number.

11444123331 is a deficient number, since it is larger than the sum of its proper divisors (5087220069).

11444123331 is a wasteful number, since it uses less digits than its factorization.

11444123331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72546 (or 72543 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 11444123331 its reverse (13332144411), we get a palindrome (24776267742).

The spelling of 11444123331 in words is "eleven billion, four hundred forty-four million, one hundred twenty-three thousand, three hundred thirty-one".