201013121331 has 48 divisors (see below), whose sum is σ = 330642001248. Its totient is φ = 116590233600.

The previous prime is 201013121327. The next prime is 201013121377. The reversal of 201013121331 is 133121310102.

201013121331 is a `hidden beast` number, since 20 + 1 + 0 + 1 + 312 + 1 + 331 = 666.

201013121331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201013121331 - 2² = 201013121327 is a prime.

It is a super-2 number, since 2×201013121331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201013121531) 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 47 ways as a sum of consecutive naturals, for example, 226366 + ... + 673251.

It is an arithmetic number, because the mean of its divisors is an integer number (6888375026).

Almost surely, 2^201013121331 is an apocalyptic number.

201013121331 is a deficient number, since it is larger than the sum of its proper divisors (129628879917).

201013121331 is a wasteful number, since it uses less digits than its factorization.

201013121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899732 (or 899729 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 201013121331 its reverse (133121310102), we get a palindrome (334134431433).

The spelling of 201013121331 in words is "two hundred one billion, thirteen million, one hundred twenty-one thousand, three hundred thirty-one".