201011031231187 has 2 divisors, whose sum is σ = 201011031231188. Its totient is φ = 201011031231186.

The previous prime is 201011031231181. The next prime is 201011031231277. The reversal of 201011031231187 is 781132130110102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201011031231187 is a prime.

It is not a weakly prime, because it can be changed into another prime (201011031231181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505515615593 + 100505515615594.

It is an arithmetic number, because the mean of its divisors is an integer number (100505515615594).

Almost surely, 2^{201011031231187} is an apocalyptic number.

201011031231187 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011031231187 is an equidigital number, since it uses as much as digits as its factorization.

201011031231187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

Adding to 201011031231187 its reverse (781132130110102), we get a palindrome (982143161341289).

The spelling of 201011031231187 in words is "two hundred one trillion, eleven billion, thirty-one million, two hundred thirty-one thousand, one hundred eighty-seven".