3216161111 has 2 divisors, whose sum is σ = 3216161112. Its totient is φ = 3216161110.

The previous prime is 3216161089. The next prime is 3216161129. The reversal of 3216161111 is 1111616123.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3216161111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3216161131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608080555 + 1608080556.

It is an arithmetic number, because the mean of its divisors is an integer number (1608080556).

Almost surely, 2^3216161111 is an apocalyptic number.

3216161111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216161111 is an equidigital number, since it uses as much as digits as its factorization.

3216161111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 23.

The square root of 3216161111 is about 56711.2079839603. The cubic root of 3216161111 is about 1476.0891866641.

Adding to 3216161111 its reverse (1111616123), we get a palindrome (4327777234).

The spelling of 3216161111 in words is "three billion, two hundred sixteen million, one hundred sixty-one thousand, one hundred eleven".