131130101 has 2 divisors, whose sum is σ = 131130102. Its totient is φ = 131130100.

The previous prime is 131130089. The next prime is 131130121. The reversal of 131130101 is 101031131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112381201 + 18748900 = 10601^2 + 4330^2 .

It is an emirp because it is prime and its reverse (101031131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131130101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131130121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65565050 + 65565051.

It is an arithmetic number, because the mean of its divisors is an integer number (65565051).

Almost surely, 2^131130101 is an apocalyptic number.

It is an amenable number.

131130101 is a deficient number, since it is larger than the sum of its proper divisors (1).

131130101 is an equidigital number, since it uses as much as digits as its factorization.

131130101 is an evil number, because the sum of its binary digits is even.

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

The square root of 131130101 is about 11451.2052204124. The cubic root of 131130101 is about 508.0433821736.

Adding to 131130101 its reverse (101031131), we get a palindrome (232161232).

The spelling of 131130101 in words is "one hundred thirty-one million, one hundred thirty thousand, one hundred one".