131103101 has 2 divisors, whose sum is σ = 131103102. Its totient is φ = 131103100.

The previous prime is 131103083. The next prime is 131103103. The reversal of 131103101 is 101301131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119880601 + 11222500 = 10949^2 + 3350^2 .

It is a cyclic number.

It is not a de Polignac number, because 131103101 - 2¹⁰ = 131102077 is a prime.

Together with 131103103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131103103) 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, 65551550 + 65551551.

It is an arithmetic number, because the mean of its divisors is an integer number (65551551).

Almost surely, 2^131103101 is an apocalyptic number.

It is an amenable number.

131103101 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103101 is an equidigital number, since it uses as much as digits as its factorization.

131103101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 131103101 is about 11450.0262445114. The cubic root of 131103101 is about 508.0085106661.

Adding to 131103101 its reverse (101301131), we get a palindrome (232404232).

The spelling of 131103101 in words is "one hundred thirty-one million, one hundred three thousand, one hundred one".