2111320447 has 2 divisors, whose sum is σ = 2111320448. Its totient is φ = 2111320446.

The previous prime is 2111320433. The next prime is 2111320481. The reversal of 2111320447 is 7440231112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111320447 - 2¹⁵ = 2111287679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111320427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055660223 + 1055660224.

It is an arithmetic number, because the mean of its divisors is an integer number (1055660224).

Almost surely, 2^2111320447 is an apocalyptic number.

2111320447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111320447 is an equidigital number, since it uses as much as digits as its factorization.

2111320447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2111320447 is about 45949.1071404005. The cubic root of 2111320447 is about 1282.8761105718.

Adding to 2111320447 its reverse (7440231112), we get a palindrome (9551551559).

The spelling of 2111320447 in words is "two billion, one hundred eleven million, three hundred twenty thousand, four hundred forty-seven".