2111163361 has 2 divisors, whose sum is σ = 2111163362. Its totient is φ = 2111163360.

The previous prime is 2111163323. The next prime is 2111163409. The reversal of 2111163361 is 1633611112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1474560000 + 636603361 = 38400^2 + 25231^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111163361 - 2⁹ = 2111162849 is a prime.

It is a super-3 number, since 3×2111163361³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2111163161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055581680 + 1055581681.

It is an arithmetic number, because the mean of its divisors is an integer number (1055581681).

Almost surely, 2^2111163361 is an apocalyptic number.

It is an amenable number.

2111163361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111163361 is an equidigital number, since it uses as much as digits as its factorization.

2111163361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 2111163361 is about 45947.3977609179. The cubic root of 2111163361 is about 1282.8442936939.

Adding to 2111163361 its reverse (1633611112), we get a palindrome (3744774473).

The spelling of 2111163361 in words is "two billion, one hundred eleven million, one hundred sixty-three thousand, three hundred sixty-one".