11431323232 has 96 divisors (see below), whose sum is σ = 26376985152. Its totient is φ = 4775307264.

The previous prime is 11431323217. The next prime is 11431323257. The reversal of 11431323232 is 23232313411.

It is a junction number, because it is equal to n+sod(n) for n = 11431323197 and 11431323206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860838 + ... + 1866970.

It is an arithmetic number, because the mean of its divisors is an integer number (274760262).

Almost surely, 2^11431323232 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 11431323232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13188492576).

11431323232 is an abundant number, since it is smaller than the sum of its proper divisors (14945661920).

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

11431323232 is a wasteful number, since it uses less digits than its factorization.

11431323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360 (or 6352 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 11431323232 its reverse (23232313411), we get a palindrome (34663636643).

The spelling of 11431323232 in words is "eleven billion, four hundred thirty-one million, three hundred twenty-three thousand, two hundred thirty-two".