11211000973 has 2 divisors, whose sum is σ = 11211000974. Its totient is φ = 11211000972.

The previous prime is 11211000971. The next prime is 11211001003. The reversal of 11211000973 is 37900011211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6152519844 + 5058481129 = 78438^2 + 71123^2 .

It is an emirp because it is prime and its reverse (37900011211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211000973 - 2¹ = 11211000971 is a prime.

Together with 11211000971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211000971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605500486 + 5605500487.

It is an arithmetic number, because the mean of its divisors is an integer number (5605500487).

Almost surely, 2^11211000973 is an apocalyptic number.

It is an amenable number.

11211000973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211000973 is an equidigital number, since it uses as much as digits as its factorization.

11211000973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The spelling of 11211000973 in words is "eleven billion, two hundred eleven million, nine hundred seventy-three", and thus it is an aban number.