201031241 has 4 divisors (see below), whose sum is σ = 205934484. Its totient is φ = 196128000.

The previous prime is 201031213. The next prime is 201031297. The reversal of 201031241 is 142130102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99102025 + 101929216 = 9955^2 + 10096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201031241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201031541) 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, 2451560 + ... + 2451641.

It is an arithmetic number, because the mean of its divisors is an integer number (51483621).

Almost surely, 2^201031241 is an apocalyptic number.

It is an amenable number.

201031241 is a deficient number, since it is larger than the sum of its proper divisors (4903243).

201031241 is an equidigital number, since it uses as much as digits as its factorization.

201031241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903242.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 201031241 is about 14178.5486210684. The cubic root of 201031241 is about 585.8069473608.

Adding to 201031241 its reverse (142130102), we get a palindrome (343161343).

The spelling of 201031241 in words is "two hundred one million, thirty-one thousand, two hundred forty-one".