11002012001 has 2 divisors, whose sum is σ = 11002012002. Its totient is φ = 11002012000.

The previous prime is 11002011991. The next prime is 11002012031. The reversal of 11002012001 is 10021020011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6332339776 + 4669672225 = 79576^2 + 68335^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002012001 - 2²⁶ = 10934903137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11002012001.

It is not a weakly prime, because it can be changed into another prime (11002012031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501006000 + 5501006001.

It is an arithmetic number, because the mean of its divisors is an integer number (5501006001).

Almost surely, 2^11002012001 is an apocalyptic number.

It is an amenable number.

11002012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002012001 is an equidigital number, since it uses as much as digits as its factorization.

11002012001 is an evil number, because the sum of its binary digits is even.

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

Adding to 11002012001 its reverse (10021020011), we get a palindrome (21023032012).

The spelling of 11002012001 in words is "eleven billion, two million, twelve thousand, one".