2001321002011 has 2 divisors, whose sum is σ = 2001321002012. Its totient is φ = 2001321002010.

The previous prime is 2001321001997. The next prime is 2001321002069. The reversal of 2001321002011 is 1102001231002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001321002011 - 2²³ = 2001312613403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001321001982 and 2001321002000.

It is not a weakly prime, because it can be changed into another prime (2001321002071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000660501005 + 1000660501006.

It is an arithmetic number, because the mean of its divisors is an integer number (1000660501006).

Almost surely, 2^{2001321002011} is an apocalyptic number.

2001321002011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001321002011 is an equidigital number, since it uses as much as digits as its factorization.

2001321002011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2001321002011 its reverse (1102001231002), we get a palindrome (3103322233013).

The spelling of 2001321002011 in words is "two trillion, one billion, three hundred twenty-one million, two thousand, eleven".