11043204012 has 96 divisors (see below), whose sum is σ = 30689346240. Its totient is φ = 3464487936.

The previous prime is 11043203939. The next prime is 11043204103. The reversal of 11043204012 is 21040234011.

It is a super-2 number, since 2×11043204012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111588 + ... + 185844.

It is an arithmetic number, because the mean of its divisors is an integer number (319680690).

Almost surely, 2^11043204012 is an apocalyptic number.

11043204012 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 11043204012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15344673120).

11043204012 is an abundant number, since it is smaller than the sum of its proper divisors (19646142228).

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

11043204012 is an equidigital number, since it uses as much as digits as its factorization.

11043204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74299 (or 74279 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11043204012 its reverse (21040234011), we get a palindrome (32083438023).

The spelling of 11043204012 in words is "eleven billion, forty-three million, two hundred four thousand, twelve".