3211342861 has 2 divisors, whose sum is σ = 3211342862. Its totient is φ = 3211342860.

The previous prime is 3211342847. The next prime is 3211342873. The reversal of 3211342861 is 1682431123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2832261961 + 379080900 = 53219^2 + 19470^2 .

It is a cyclic number.

It is not a de Polignac number, because 3211342861 - 2⁵ = 3211342829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3211382861) 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, 1605671430 + 1605671431.

It is an arithmetic number, because the mean of its divisors is an integer number (1605671431).

Almost surely, 2^3211342861 is an apocalyptic number.

It is an amenable number.

3211342861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211342861 is an equidigital number, since it uses as much as digits as its factorization.

3211342861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 3211342861 is about 56668.7114817339. The cubic root of 3211342861 is about 1475.3516903029.

Adding to 3211342861 its reverse (1682431123), we get a palindrome (4893773984).

The spelling of 3211342861 in words is "three billion, two hundred eleven million, three hundred forty-two thousand, eight hundred sixty-one".