11288021232 has 40 divisors (see below), whose sum is σ = 29339641984. Its totient is φ = 3739587264.

The previous prime is 11288021221. The next prime is 11288021273. The reversal of 11288021232 is 23212088211.

It is a self number, because there is not a number n which added to its sum of digits gives 11288021232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713548 + ... + 729195.

Almost surely, 2^11288021232 is an apocalyptic number.

11288021232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11288021232 is an abundant number, since it is smaller than the sum of its proper divisors (18051620752).

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

11288021232 is a wasteful number, since it uses less digits than its factorization.

11288021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442917 (or 1442911 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 11288021232 in words is "eleven billion, two hundred eighty-eight million, twenty-one thousand, two hundred thirty-two".