201011331331 has 2 divisors, whose sum is σ = 201011331332. Its totient is φ = 201011331330.

The previous prime is 201011331329. The next prime is 201011331343. The reversal of 201011331331 is 133133110102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201011331331 - 2¹ = 201011331329 is a prime.

It is a super-2 number, since 2×201011331331² (a number of 23 digits) contains 22 as substring.

Together with 201011331329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 201011331299 and 201011331308.

It is not a weakly prime, because it can be changed into another prime (201011331431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505665665 + 100505665666.

It is an arithmetic number, because the mean of its divisors is an integer number (100505665666).

Almost surely, 2^201011331331 is an apocalyptic number.

201011331331 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011331331 is an equidigital number, since it uses as much as digits as its factorization.

201011331331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 201011331331 its reverse (133133110102), we get a palindrome (334144441433).

The spelling of 201011331331 in words is "two hundred one billion, eleven million, three hundred thirty-one thousand, three hundred thirty-one".