201201013331 has 4 divisors (see below), whose sum is σ = 201219387072. Its totient is φ = 201182639592.

The previous prime is 201201013303. The next prime is 201201013337. The reversal of 201201013331 is 133310102102.

201201013331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133310102102 = 2 ⋅66655051051.

It is a cyclic number.

It is not a de Polignac number, because 201201013331 - 2¹⁴ = 201200996947 is a prime.

It is a super-2 number, since 2×201201013331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201201013337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9170435 + ... + 9192348.

It is an arithmetic number, because the mean of its divisors is an integer number (50304846768).

Almost surely, 2^201201013331 is an apocalyptic number.

201201013331 is a deficient number, since it is larger than the sum of its proper divisors (18373741).

201201013331 is a wasteful number, since it uses less digits than its factorization.

201201013331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373740.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 201201013331 its reverse (133310102102), we get a palindrome (334511115433).

The spelling of 201201013331 in words is "two hundred one billion, two hundred one million, thirteen thousand, three hundred thirty-one".