11243210971 has 2 divisors, whose sum is σ = 11243210972. Its totient is φ = 11243210970.

The previous prime is 11243210969. The next prime is 11243210983. The reversal of 11243210971 is 17901234211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11243210971 - 2¹ = 11243210969 is a prime.

Together with 11243210969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11243210471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621605485 + 5621605486.

It is an arithmetic number, because the mean of its divisors is an integer number (5621605486).

Almost surely, 2^11243210971 is an apocalyptic number.

11243210971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11243210971 is an equidigital number, since it uses as much as digits as its factorization.

11243210971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 11243210971 in words is "eleven billion, two hundred forty-three million, two hundred ten thousand, nine hundred seventy-one".