131011273 has 2 divisors, whose sum is σ = 131011274. Its totient is φ = 131011272.

The previous prime is 131011271. The next prime is 131011313. The reversal of 131011273 is 372110131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96589584 + 34421689 = 9828^2 + 5867^2 .

It is an emirp because it is prime and its reverse (372110131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131011273 - 2¹ = 131011271 is a prime.

Together with 131011271, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 131011273.

It is not a weakly prime, because it can be changed into another prime (131011271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65505636 + 65505637.

It is an arithmetic number, because the mean of its divisors is an integer number (65505637).

Almost surely, 2^131011273 is an apocalyptic number.

It is an amenable number.

131011273 is a deficient number, since it is larger than the sum of its proper divisors (1).

131011273 is an equidigital number, since it uses as much as digits as its factorization.

131011273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 131011273 is about 11446.0155949571. The cubic root of 131011273 is about 507.8898755337.

The spelling of 131011273 in words is "one hundred thirty-one million, eleven thousand, two hundred seventy-three".