10311111971 has 2 divisors, whose sum is σ = 10311111972. Its totient is φ = 10311111970.

The previous prime is 10311111961. The next prime is 10311112067. The reversal of 10311111971 is 17911111301.

It is a weak prime.

It is an emirp because it is prime and its reverse (17911111301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10311111971 - 2¹⁰ = 10311110947 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10311111971.

It is not a weakly prime, because it can be changed into another prime (10311111911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155555985 + 5155555986.

It is an arithmetic number, because the mean of its divisors is an integer number (5155555986).

Almost surely, 2^10311111971 is an apocalyptic number.

10311111971 is a deficient number, since it is larger than the sum of its proper divisors (1).

10311111971 is an equidigital number, since it uses as much as digits as its factorization.

10311111971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 26.

The spelling of 10311111971 in words is "ten billion, three hundred eleven million, one hundred eleven thousand, nine hundred seventy-one".