131100199 has 2 divisors, whose sum is σ = 131100200. Its totient is φ = 131100198.

The previous prime is 131100197. The next prime is 131100223. The reversal of 131100199 is 991001131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131100199 - 2¹ = 131100197 is a prime.

Together with 131100197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131100191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550099 + 65550100.

It is an arithmetic number, because the mean of its divisors is an integer number (65550100).

Almost surely, 2^131100199 is an apocalyptic number.

131100199 is a deficient number, since it is larger than the sum of its proper divisors (1).

131100199 is an equidigital number, since it uses as much as digits as its factorization.

131100199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 131100199 is about 11449.8995192098. The cubic root of 131100199 is about 508.0047623399.

The spelling of 131100199 in words is "one hundred thirty-one million, one hundred thousand, one hundred ninety-nine".