11021280704 has 168 divisors, whose sum is σ = 26638593408. Its totient is φ = 4505518080.

The previous prime is 11021280629. The next prime is 11021280769. The reversal of 11021280704 is 40708212011.

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, 7095992 + ... + 7097544.

It is an arithmetic number, because the mean of its divisors is an integer number (158563056).

Almost surely, 2^11021280704 is an apocalyptic number.

11021280704 is a gapful number since it is divisible by the number (14) 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 11021280704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13319296704).

11021280704 is an abundant number, since it is smaller than the sum of its proper divisors (15617312704).

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

11021280704 is a wasteful number, since it uses less digits than its factorization.

11021280704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 11021280704 its reverse (40708212011), we get a palindrome (51729492715).

The spelling of 11021280704 in words is "eleven billion, twenty-one million, two hundred eighty thousand, seven hundred four".