11200431232 has 64 divisors (see below), whose sum is σ = 23721193440. Its totient is φ = 5249536000.

The previous prime is 11200431199. The next prime is 11200431241. The reversal of 11200431232 is 23213400211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×11200431232² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535923 + ... + 556429.

Almost surely, 2^11200431232 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 11200431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11860596720).

11200431232 is an abundant number, since it is smaller than the sum of its proper divisors (12520762208).

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

11200431232 is a wasteful number, since it uses less digits than its factorization.

11200431232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789 (or 20777 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11200431232 its reverse (23213400211), we get a palindrome (34413831443).

The spelling of 11200431232 in words is "eleven billion, two hundred million, four hundred thirty-one thousand, two hundred thirty-two".