10311323287 has 2 divisors, whose sum is σ = 10311323288. Its totient is φ = 10311323286.

The previous prime is 10311323179. The next prime is 10311323299. The reversal of 10311323287 is 78232311301.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10311323287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10311323587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155661643 + 5155661644.

It is an arithmetic number, because the mean of its divisors is an integer number (5155661644).

Almost surely, 2^10311323287 is an apocalyptic number.

10311323287 is a deficient number, since it is larger than the sum of its proper divisors (1).

10311323287 is an equidigital number, since it uses as much as digits as its factorization.

10311323287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 10311323287 its reverse (78232311301), we get a palindrome (88543634588).

The spelling of 10311323287 in words is "ten billion, three hundred eleven million, three hundred twenty-three thousand, two hundred eighty-seven".