11201331432 has 96 divisors (see below), whose sum is σ = 29935375200. Its totient is φ = 3488526720.

The previous prime is 11201331389. The next prime is 11201331443. The reversal of 11201331432 is 23413310211.

It is a super-2 number, since 2×11201331432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11201331399 and 11201331408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 660483 + ... + 677229.

It is an arithmetic number, because the mean of its divisors is an integer number (311826825).

Almost surely, 2^11201331432 is an apocalyptic number.

11201331432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11201331432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14967687600).

11201331432 is an abundant number, since it is smaller than the sum of its proper divisors (18734043768).

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

11201331432 is a wasteful number, since it uses less digits than its factorization.

11201331432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16847 (or 16812 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11201331432 its reverse (23413310211), we get a palindrome (34614641643).

The spelling of 11201331432 in words is "eleven billion, two hundred one million, three hundred thirty-one thousand, four hundred thirty-two".