201131103 has 4 divisors (see below), whose sum is σ = 268174808. Its totient is φ = 134087400.

The previous prime is 201131083. The next prime is 201131123. The reversal of 201131103 is 301131102.

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

It is an interprime number because it is at equal distance from previous prime (201131083) and next prime (201131123).

It is not a de Polignac number, because 201131103 - 2⁹ = 201130591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201131123) 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 in 3 ways as a sum of consecutive naturals, for example, 33521848 + ... + 33521853.

It is an arithmetic number, because the mean of its divisors is an integer number (67043702).

Almost surely, 2^201131103 is an apocalyptic number.

201131103 is a deficient number, since it is larger than the sum of its proper divisors (67043705).

201131103 is an equidigital number, since it uses as much as digits as its factorization.

201131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67043704.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 201131103 is about 14182.0697713698. The cubic root of 201131103 is about 585.9039309095.

Adding to 201131103 its reverse (301131102), we get a palindrome (502262205).

Subtracting 201131103 from its reverse (301131102), we obtain a palindrome (99999999).

The spelling of 201131103 in words is "two hundred one million, one hundred thirty-one thousand, one hundred three".