11331211231232 has 72 divisors (see below), whose sum is σ = 23046459130800. Its totient is φ = 5569574600704.

The previous prime is 11331211231183. The next prime is 11331211231237. The reversal of 11331211231232 is 23213211213311.

It is not an unprimeable number, because it can be changed into a prime (11331211231237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7000619 + ... + 8465877.

It is an arithmetic number, because the mean of its divisors is an integer number (320089710150).

Almost surely, 2^{11331211231232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11331211231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11523229565400).

11331211231232 is an abundant number, since it is smaller than the sum of its proper divisors (11715247899568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11331211231232 is an frugal number, since it uses more digits than its factorization.

11331211231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465352 (or 1465320 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

Adding to 11331211231232 its reverse (23213211213311), we get a palindrome (34544422444543).

The spelling of 11331211231232 in words is "eleven trillion, three hundred thirty-one billion, two hundred eleven million, two hundred thirty-one thousand, two hundred thirty-two".