3211213031312 has 60 divisors (see below), whose sum is σ = 7364814051420. Its totient is φ = 1347362100480.

The previous prime is 3211213031297. The next prime is 3211213031353. The reversal of 3211213031312 is 2131303121123.

It can be written as a sum of positive squares in 2 ways, for example, as 886942034176 + 2324270997136 = 941776^2 + 1524556^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63770387 + ... + 63820722.

It is an arithmetic number, because the mean of its divisors is an integer number (122746900857).

Almost surely, 2^{3211213031312} is an apocalyptic number.

It is an amenable number.

3211213031312 is an abundant number, since it is smaller than the sum of its proper divisors (4153601020108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3211213031312 is a wasteful number, since it uses less digits than its factorization.

3211213031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127591152 (or 127591135 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3211213031312 its reverse (2131303121123), we get a palindrome (5342516152435).

The spelling of 3211213031312 in words is "three trillion, two hundred eleven billion, two hundred thirteen million, thirty-one thousand, three hundred twelve".