11001002012 has 144 divisors (see below), whose sum is σ = 26312830656. Its totient is φ = 3915648000.

The previous prime is 11001002003. The next prime is 11001002017. The reversal of 11001002012 is 21020010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001002017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4447208 + ... + 4449680.

Almost surely, 2^11001002012 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 11001002012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13156415328).

11001002012 is an abundant number, since it is smaller than the sum of its proper divisors (15311828644).

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

11001002012 is a wasteful number, since it uses less digits than its factorization.

11001002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11001002012 its reverse (21020010011), we get a palindrome (32021012023).

The spelling of 11001002012 in words is "eleven billion, one million, two thousand, twelve".