2001311003201 has 4 divisors (see below), whose sum is σ = 2055400489812. Its totient is φ = 1947221516592.

The previous prime is 2001311003177. The next prime is 2001311003239. The reversal of 2001311003201 is 1023001131002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1783012737025 + 218298266176 = 1335295^2 + 467224^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001311003201 - 2³⁴ = 1984131134017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001311003701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27044743250 + ... + 27044743323.

It is an arithmetic number, because the mean of its divisors is an integer number (513850122453).

Almost surely, 2^{2001311003201} is an apocalyptic number.

It is an amenable number.

2001311003201 is a deficient number, since it is larger than the sum of its proper divisors (54089486611).

2001311003201 is an equidigital number, since it uses as much as digits as its factorization.

2001311003201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54089486610.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 2001311003201 its reverse (1023001131002), we get a palindrome (3024312134203).

The spelling of 2001311003201 in words is "two trillion, one billion, three hundred eleven million, three thousand, two hundred one".