10311721247 has 2 divisors, whose sum is σ = 10311721248. Its totient is φ = 10311721246.

The previous prime is 10311721241. The next prime is 10311721319. The reversal of 10311721247 is 74212711301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10311721247 - 2¹² = 10311717151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10311721241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155860623 + 5155860624.

It is an arithmetic number, because the mean of its divisors is an integer number (5155860624).

Almost surely, 2^10311721247 is an apocalyptic number.

10311721247 is a deficient number, since it is larger than the sum of its proper divisors (1).

10311721247 is an equidigital number, since it uses as much as digits as its factorization.

10311721247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

The spelling of 10311721247 in words is "ten billion, three hundred eleven million, seven hundred twenty-one thousand, two hundred forty-seven".