1002011011002 has 32 divisors (see below), whose sum is σ = 2227937400000. Its totient is φ = 333816730704.

The previous prime is 1002011010971. The next prime is 1002011011003. The reversal of 1002011011002 is 2001101102001.

It is a happy number.

1002011011002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1002011011003) 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, 5095377 + ... + 5288372.

It is an arithmetic number, because the mean of its divisors is an integer number (69623043750).

Almost surely, 2^{1002011011002} is an apocalyptic number.

1002011011002 is an abundant number, since it is smaller than the sum of its proper divisors (1225926388998).

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

1002011011002 is a wasteful number, since it uses less digits than its factorization.

1002011011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10385547 (or 10385541 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1002011011002 its reverse (2001101102001), we get a palindrome (3003112113003).

Subtracting 1002011011002 from its reverse (2001101102001), we obtain a palindrome (999090090999).

The spelling of 1002011011002 in words is "one trillion, two billion, eleven million, eleven thousand, two".