1002001313211 has 4 divisors (see below), whose sum is σ = 1336001750952. Its totient is φ = 668000875472.

The previous prime is 1002001313197. The next prime is 1002001313213. The reversal of 1002001313211 is 1123131002001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1002001313211 - 2⁶ = 1002001313147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002001313213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167000218866 + ... + 167000218871.

It is an arithmetic number, because the mean of its divisors is an integer number (334000437738).

Almost surely, 2^{1002001313211} is an apocalyptic number.

1002001313211 is a deficient number, since it is larger than the sum of its proper divisors (334000437741).

1002001313211 is an equidigital number, since it uses as much as digits as its factorization.

1002001313211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334000437740.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1002001313211 its reverse (1123131002001), we get a palindrome (2125132315212).

The spelling of 1002001313211 in words is "one trillion, two billion, one million, three hundred thirteen thousand, two hundred eleven".