201131017 has 4 divisors (see below), whose sum is σ = 211716880. Its totient is φ = 190545156.

The previous prime is 201130999. The next prime is 201131053. The reversal of 201131017 is 710131102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201131017 - 2²³ = 192742409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201131417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5292903 + ... + 5292940.

It is an arithmetic number, because the mean of its divisors is an integer number (52929220).

Almost surely, 2^201131017 is an apocalyptic number.

It is an amenable number.

201131017 is a deficient number, since it is larger than the sum of its proper divisors (10585863).

201131017 is a wasteful number, since it uses less digits than its factorization.

201131017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585862.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 201131017 is about 14182.0667393719. The cubic root of 201131017 is about 585.9038474022.

Adding to 201131017 its reverse (710131102), we get a palindrome (911262119).

The spelling of 201131017 in words is "two hundred one million, one hundred thirty-one thousand, seventeen".