11231331044 has 12 divisors (see below), whose sum is σ = 20810995884. Its totient is φ = 5285332224.

The previous prime is 11231331029. The next prime is 11231331049. The reversal of 11231331044 is 44013313211.

It can be written as a sum of positive squares in 2 ways, for example, as 8580316900 + 2651014144 = 92630^2 + 51488^2 .

It is a super-2 number, since 2×11231331044² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231331049) 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, 82583249 + ... + 82583384.

It is an arithmetic number, because the mean of its divisors is an integer number (1734249657).

Almost surely, 2^11231331044 is an apocalyptic number.

It is an amenable number.

11231331044 is a deficient number, since it is larger than the sum of its proper divisors (9579664840).

11231331044 is a wasteful number, since it uses less digits than its factorization.

11231331044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165166654 (or 165166652 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11231331044 its reverse (44013313211), we get a palindrome (55244644255).

The spelling of 11231331044 in words is "eleven billion, two hundred thirty-one million, three hundred thirty-one thousand, forty-four".