11021431232 has 168 divisors, whose sum is σ = 27042008400. Its totient is φ = 4431200256.

The previous prime is 11021431219. The next prime is 11021431363. The reversal of 11021431232 is 23213412011.

It is a congruent number.

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, 6493808 + ... + 6495504.

Almost surely, 2^11021431232 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 11021431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13521004200).

11021431232 is an abundant number, since it is smaller than the sum of its proper divisors (16020577168).

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

11021431232 is a wasteful number, since it uses less digits than its factorization.

11021431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11021431232 its reverse (23213412011), we get a palindrome (34234843243).

The spelling of 11021431232 in words is "eleven billion, twenty-one million, four hundred thirty-one thousand, two hundred thirty-two".