2111321297 has 2 divisors, whose sum is σ = 2111321298. Its totient is φ = 2111321296.

The previous prime is 2111321243. The next prime is 2111321321. The reversal of 2111321297 is 7921231112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1713877201 + 397444096 = 41399^2 + 19936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111321297 - 2¹⁰ = 2111320273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111321897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055660648 + 1055660649.

It is an arithmetic number, because the mean of its divisors is an integer number (1055660649).

Almost surely, 2^2111321297 is an apocalyptic number.

It is an amenable number.

2111321297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111321297 is an equidigital number, since it uses as much as digits as its factorization.

2111321297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 2111321297 is about 45949.1163897631. The cubic root of 2111321297 is about 1282.8762827302.

The spelling of 2111321297 in words is "two billion, one hundred eleven million, three hundred twenty-one thousand, two hundred ninety-seven".