3211013012161 has 2 divisors, whose sum is σ = 3211013012162. Its totient is φ = 3211013012160.

The previous prime is 3211013012107. The next prime is 3211013012189. The reversal of 3211013012161 is 1612103101123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2252493690561 + 958519321600 = 1500831^2 + 979040^2 .

It is a cyclic number.

It is not a de Polignac number, because 3211013012161 - 2⁷ = 3211013012033 is a prime.

It is not a weakly prime, because it can be changed into another prime (3211013012461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605506506080 + 1605506506081.

It is an arithmetic number, because the mean of its divisors is an integer number (1605506506081).

Almost surely, 2^{3211013012161} is an apocalyptic number.

It is an amenable number.

3211013012161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211013012161 is an equidigital number, since it uses as much as digits as its factorization.

3211013012161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 3211013012161 its reverse (1612103101123), we get a palindrome (4823116113284).

The spelling of 3211013012161 in words is "three trillion, two hundred eleven billion, thirteen million, twelve thousand, one hundred sixty-one".