131044811 has 2 divisors, whose sum is σ = 131044812. Its totient is φ = 131044810.

The previous prime is 131044783. The next prime is 131044813. The reversal of 131044811 is 118440131.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (118440131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131044811 - 2²⁶ = 63935947 is a prime.

Together with 131044813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131044813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65522405 + 65522406.

It is an arithmetic number, because the mean of its divisors is an integer number (65522406).

Almost surely, 2^131044811 is an apocalyptic number.

131044811 is a deficient number, since it is larger than the sum of its proper divisors (1).

131044811 is an equidigital number, since it uses as much as digits as its factorization.

131044811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 131044811 is about 11447.4805525059. The cubic root of 131044811 is about 507.9332106273.

Adding to 131044811 its reverse (118440131), we get a palindrome (249484942).

The spelling of 131044811 in words is "one hundred thirty-one million, forty-four thousand, eight hundred eleven".