3213120231321 has 128 divisors (see below), whose sum is σ = 5913662017536. Its totient is φ = 1497582535680.

The previous prime is 3213120231311. The next prime is 3213120231323. The reversal of 3213120231321 is 1231320213123.

It is not a de Polignac number, because 3213120231321 - 2⁹ = 3213120230809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3213120231291 and 3213120231300.

It is not an unprimeable number, because it can be changed into a prime (3213120231323) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 112541170 + ... + 112569716.

It is an arithmetic number, because the mean of its divisors is an integer number (46200484512).

Almost surely, 2^{3213120231321} is an apocalyptic number.

It is an amenable number.

3213120231321 is a deficient number, since it is larger than the sum of its proper divisors (2700541786215).

3213120231321 is a wasteful number, since it uses less digits than its factorization.

3213120231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29631.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 3213120231321 its reverse (1231320213123), we get a palindrome (4444440444444).

The spelling of 3213120231321 in words is "three trillion, two hundred thirteen billion, one hundred twenty million, two hundred thirty-one thousand, three hundred twenty-one".