11033121012 has 48 divisors (see below), whose sum is σ = 26120825472. Its totient is φ = 3623961600.

The previous prime is 11033120993. The next prime is 11033121013. The reversal of 11033121012 is 21012133011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11033120982 and 11033121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033121013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046833 + ... + 1057319.

It is an arithmetic number, because the mean of its divisors is an integer number (544183864).

Almost surely, 2^11033121012 is an apocalyptic number.

11033121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11033121012 is an abundant number, since it is smaller than the sum of its proper divisors (15087704460).

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

11033121012 is a wasteful number, since it uses less digits than its factorization.

11033121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11768 (or 11766 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11033121012 its reverse (21012133011), we get a palindrome (32045254023).

The spelling of 11033121012 in words is "eleven billion, thirty-three million, one hundred twenty-one thousand, twelve".