3211212313 has 4 divisors (see below), whose sum is σ = 3213382068. Its totient is φ = 3209042560.

The previous prime is 3211212299. The next prime is 3211212337. The reversal of 3211212313 is 3132121123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1992015424 + 1219196889 = 44632^2 + 34917^2 .

It is a cyclic number.

It is not a de Polignac number, because 3211212313 - 2¹⁷ = 3211081241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3211212343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082656 + ... + 1085617.

It is an arithmetic number, because the mean of its divisors is an integer number (803345517).

Almost surely, 2^3211212313 is an apocalyptic number.

It is an amenable number.

3211212313 is a deficient number, since it is larger than the sum of its proper divisors (2169755).

3211212313 is a wasteful number, since it uses less digits than its factorization.

3211212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169754.

The product of its digits is 216, while the sum is 19.

The square root of 3211212313 is about 56667.5596174743. The cubic root of 3211212313 is about 1475.3316979580.

Adding to 3211212313 its reverse (3132121123), we get a palindrome (6343333436).

The spelling of 3211212313 in words is "three billion, two hundred eleven million, two hundred twelve thousand, three hundred thirteen".