131030311 has 2 divisors, whose sum is σ = 131030312. Its totient is φ = 131030310.

The previous prime is 131030309. The next prime is 131030329. The reversal of 131030311 is 113030131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (113030131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131030311 - 2¹ = 131030309 is a prime.

Together with 131030309, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 131030291 and 131030300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131030411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65515155 + 65515156.

It is an arithmetic number, because the mean of its divisors is an integer number (65515156).

Almost surely, 2^131030311 is an apocalyptic number.

131030311 is a deficient number, since it is larger than the sum of its proper divisors (1).

131030311 is an equidigital number, since it uses as much as digits as its factorization.

131030311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131030311 is about 11446.8472078560. The cubic root of 131030311 is about 507.9144758064.

Adding to 131030311 its reverse (113030131), we get a palindrome (244060442).

The spelling of 131030311 in words is "one hundred thirty-one million, thirty thousand, three hundred eleven".