201321133320011 has 4 divisors (see below), whose sum is σ = 201918525407352. Its totient is φ = 200723741232672.

The previous prime is 201321133319951. The next prime is 201321133320029. The reversal of 201321133320011 is 110023331123102.

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 201321133320011 - 2⁶ = 201321133319947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201321133320211) 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, 298696043165 + ... + 298696043838.

It is an arithmetic number, because the mean of its divisors is an integer number (50479631351838).

Almost surely, 2^{201321133320011} is an apocalyptic number.

201321133320011 is a deficient number, since it is larger than the sum of its proper divisors (597392087341).

201321133320011 is an equidigital number, since it uses as much as digits as its factorization.

201321133320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597392087340.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 201321133320011 its reverse (110023331123102), we get a palindrome (311344464443113).

The spelling of 201321133320011 in words is "two hundred one trillion, three hundred twenty-one billion, one hundred thirty-three million, three hundred twenty thousand, eleven".